topic The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstanc in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/the-error-may-involve-org-activiti-engine-impl-persistence/m-p/235753#M188883 <HTML><HEAD></HEAD><BODY><SPAN>2016-03-22 15:42:59 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 96 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 107 more</SPAN><BR /><SPAN>2016-03-22 15:42:59 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 15:42:59 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 15:42:59 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 96 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 107 more</SPAN><BR /><SPAN>2016-03-22 15:42:59 ERROR net…….web.rest.controller.TaskManagementServiceController:113 - Error while retrieving Task listorg.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 15:51:19 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 94 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 105 more</SPAN><BR /><SPAN>2016-03-22 15:51:19 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 15:51:19 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 15:51:19 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 94 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 105 more</SPAN><BR /><SPAN>2016-03-22 15:51:19 ERROR net…….web.rest.controller.TaskManagementServiceController:113 - Error while retrieving Task listorg.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 15:55:49 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 94 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 105 more</SPAN><BR /><SPAN>2016-03-22 15:55:49 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 15:55:49 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 15:55:49 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 94 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 105 more</SPAN><BR /><SPAN>2016-03-22 15:55:49 ERROR net…….web.rest.controller.TaskManagementServiceController:113 - Error while retrieving Task listorg.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 16:14:34 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 93 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 104 more</SPAN><BR /><SPAN>2016-03-22 16:14:34 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 16:14:34 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 16:14:34 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 93 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 104 more</SPAN><BR /><SPAN>2016-03-22 16:14:34 ERROR net…….web.rest.controller.TaskManagementServiceController:113 - Error while retrieving Task listorg.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 17:10:14 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A2 on RES.PROC_INST_ID_ = A2.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 114 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 125 more</SPAN><BR /><SPAN>2016-03-22 17:10:14 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 17:10:14 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 17:10:14 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A2 on RES.PROC_INST_ID_ = A2.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 114 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 125 more</SPAN><BR /><SPAN>2016-03-22 17:10:14 ERROR net…….web.rest.controller.WorkflowApproverController:58 - Error while instanciating workflowCould not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 17:13:49 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A2 on RES.PROC_INST_ID_ = A2.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 114 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 125 more</SPAN><BR /><SPAN>2016-03-22 17:13:49 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 17:13:49 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 17:13:49 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A2 on RES.PROC_INST_ID_ = A2.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 114 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 125 more</SPAN><BR /><SPAN>2016-03-22 17:13:49 ERROR net…….web.rest.controller.WorkflowApproverController:58 - Error while instanciating workflowCould not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 17:19:24 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 114 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 125 more</SPAN><BR /><SPAN>2016-03-22 17:19:24 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 17:19:24 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 17:19:24 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 114 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 125 more</SPAN><BR /><SPAN>2016-03-22 17:19:24 ERROR net…….web.rest.controller.WorkflowApproverController:58 - Error while instanciating workflowCould not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 18:25:14 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 112 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 123 more</SPAN><BR /><SPAN>2016-03-22 18:25:14 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:25:14 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:25:14 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 112 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 123 more</SPAN><BR /><SPAN>2016-03-22 18:25:14 ERROR net…….web.rest.controller.WorkflowApproverController:58 - Error while instanciating workflowCould not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 18:28:24 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 112 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 123 more</SPAN><BR /><SPAN>2016-03-22 18:28:24 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:28:24 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:28:24 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 112 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 123 more</SPAN><BR /><SPAN>2016-03-22 18:28:24 ERROR net…….web.rest.controller.WorkflowApproverController:58 - Error while instanciating workflowCould not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 18:31:29 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A2 on RES.PROC_INST_ID_ = A2.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and lower(A2.TEXT_)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:211)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 112 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 123 more</SPAN><BR /><SPAN>2016-03-22 18:31:29 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:211)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:31:29 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:211)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:31:29 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A1 on RES.PROC_INST_ID_ = A1.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A2 on RES.PROC_INST_ID_ = A2.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A1.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A2.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and lower(A2.TEXT_)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:211)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.impl.WorkflowApproverServiceImpl.getApprovalDetailsList(WorkflowApproverServiceImpl.java:243)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor508.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy79.getApprovalDetailsList(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController.getApprovalDetailsList(WorkflowApproverController.java:55)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$FastClassByCGLIB$$e7edf5e7.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.WorkflowApproverController$$EnhancerByCGLIB$$8a5c9bf1.getApprovalDetailsList(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor507.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 112 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 123 more</SPAN><BR /><SPAN>2016-03-22 18:31:29 ERROR net…….web.rest.controller.WorkflowApproverController:58 - Error while instanciating workflowCould not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 18:53:22 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:53:22 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:53:32 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:53:32 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:53:52 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:53:52 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:54:00 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:54:00 ERROR net…….web.rest.controller.LoginController:50 - org.springframework.orm.hibernate3.HibernateJdbcException: JDBC exception on Hibernate data access: SQLException for SQL [???]; SQL state [53300]; error code [0]; Cannot open connection; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>2016-03-22 18:54:32 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:54:32 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:55:11 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:55:11 ERROR net…….web.rest.controller.LoginController:50 - org.springframework.orm.hibernate3.HibernateJdbcException: JDBC exception on Hibernate data access: SQLException for SQL [???]; SQL state [53300]; error code [0]; Cannot open connection; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>2016-03-22 18:55:32 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:55:32 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:56:19 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command context</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor506.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 92 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 103 more</SPAN><BR /><SPAN>2016-03-22 18:56:19 ERROR org.hibernate.transaction.JDBCTransaction:228 - Could not toggle autocommit</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.setAutoCommit(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.toggleAutoCommit(JDBCTransaction.java:224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:216)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor506.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:56:19 ERROR org.hibernate.transaction.JDBCTransaction:198 - JDBC rollback failed</SPAN><BR /><SPAN>java.sql.SQLException: Connection has already been closed.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:117)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy23.rollback(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit(JDBCTransaction.java:213)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:192)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:494)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:846)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:823)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:162)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:135)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor506.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>2016-03-22 18:56:19 ERROR org.springframework.transaction.support.TransactionTemplate:165 - Application exception overridden by rollback exception</SPAN><BR /><SPAN>org.apache.ibatis.exceptions.PersistenceException: </SPAN><BR /><SPAN>### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>### The error may exist in org/activiti/db/mapping/entity/HistoricProcessInstance.xml</SPAN><BR /><SPAN>### The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstancesWithVariablesByQueryCriteria-Inline</SPAN><BR /><SPAN>### The error occurred while setting parameters</SPAN><BR /><SPAN>### SQL: select distinct RES.*,&nbsp;&nbsp;&nbsp;&nbsp; VAR.ID_ as VAR_ID_, VAR.NAME_ as VAR_NAME_, VAR.VAR_TYPE_ as VAR_TYPE_, VAR.REV_ as VAR_REV_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.PROC_INST_ID_ as VAR_PROC_INST_ID_, VAR.EXECUTION_ID_ as VAR_EXECUTION_ID_, VAR.TASK_ID_ as VAR_TASK_ID_,&nbsp;&nbsp;&nbsp;&nbsp; VAR.BYTEARRAY_ID_ as VAR_BYTEARRAY_ID_, VAR.DOUBLE_ as VAR_DOUBLE_,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR.TEXT_ as VAR_TEXT_, VAR.TEXT2_ as VAR_TEXT2_, VAR.LONG_ as VAR_LONG_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; from ACT_HI_PROCINST RES&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; left outer join ACT_HI_VARINST VAR ON RES.PROC_INST_ID_ = VAR.EXECUTION_ID_ and VAR.TASK_ID_ is null&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inner join ACT_HI_VARINST&nbsp; A0 on RES.PROC_INST_ID_ = A0.PROC_INST_ID_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHERE&nbsp; RES.START_TIME_ &lt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.START_TIME_ &gt;= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and RES.END_TIME_ is not NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.NAME_= ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.VAR_TYPE_ = ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; and A0.TEXT_&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; order by RES.END_TIME_ desc&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; LIMIT ? OFFSET ?</SPAN><BR /><SPAN>### Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectListWithRawParameter(DbSqlSession.java:286)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.db.DbSqlSession.selectList(DbSqlSession.java:277)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntityManager.findHistoricProcessInstancesAndVariablesByQueryCriteria(HistoricProcessInstanceEntityManager.java:120)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.HistoricProcessInstanceQueryImpl.executeList(HistoricProcessInstanceQueryImpl.java:203)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.execute(AbstractQuery.java:139)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.AbstractQuery.list(AbstractQuery.java:113)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….service.activity.engine.impl.ProgramMgtTaskServiceImpl.getAllTasks(ProgramMgtTaskServiceImpl.java:155)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor476.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.sun.proxy.$Proxy59.getAllTasks(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController.getAllTasks(TaskManagementServiceController.java:111)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$FastClassByCGLIB$$25d36242.invoke(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….common.utils.LoggingAspect.logAround(LoggingAspect.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.rest.controller.TaskManagementServiceController$$EnhancerByCGLIB$$38034fec.getAllTasks(&lt;generated&gt;)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.GeneratedMethodAccessor506.invoke(Unknown Source)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:606)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at net…….web.filter…Filter.doFilter(..Filter.java:91)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:283)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:500)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:381)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:56)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:104)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 92 more</SPAN><BR /><SPAN>Caused by: java.net.SocketException: Socket closed</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.socketRead0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:152)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.net.SocketInputStream.read(SocketInputStream.java:122)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:145)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:114)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:274)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1660)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 103 more</SPAN><BR /><SPAN>2016-03-22 18:56:19 ERROR net…….web.rest.controller.TaskManagementServiceController:113 - Error while retrieving Task listorg.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking</SPAN><BR /><SPAN>2016-03-22 18:56:32 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:56:32 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:57:52 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:57:52 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:58:02 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:58:02 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:58:22 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:58:22 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:59:02 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 18:59:02 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 18:59:47 ERROR net…….web.rest.controller.WorkflowApproverController:58 - Error while instanciating workflownull</SPAN><BR /><SPAN>2016-03-22 19:01:07 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 19:01:07 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 19:01:17 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 19:01:17 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /><SPAN>2016-03-22 19:01:37 ERROR org.hibernate.util.JDBCExceptionReporter:234 - FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>2016-03-22 19:01:37 ERROR org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable:97 - exception during job acquisition: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:372)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable.run(AcquireJobsRunnable.java:59)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:745)</SPAN><BR /><SPAN>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:63)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.DefaultJpaDialect.beginTransaction(DefaultJpaDialect.java:70)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:57)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:332)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 8 more</SPAN><BR /><SPAN>Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:60)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 11 more</SPAN><BR /><SPAN>Caused by: org.postgresql.util.PSQLException: FATAL: remaining connection slots are reserved for non-replication superuser connections</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.readStartupMessages(ConnectionFactoryImpl.java:469)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:112)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc2.AbstractJdbc2Connection.&lt;init&gt;(AbstractJdbc2Connection.java:125)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3.AbstractJdbc3Connection.&lt;init&gt;(AbstractJdbc3Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc3g.AbstractJdbc3gConnection.&lt;init&gt;(AbstractJdbc3gConnection.java:22)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.AbstractJdbc4Connection.&lt;init&gt;(AbstractJdbc4Connection.java:30)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.jdbc4.Jdbc4Connection.&lt;init&gt;(Jdbc4Connection.java:24)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.makeConnection(Driver.java:393)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.postgresql.Driver.connect(Driver.java:267)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:278)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:701)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:635)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:71)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 16 more</SPAN><BR /></BODY></HTML> Sat, 26 Mar 2016 14:46:42 GMT rahuls16 2016-03-26T14:46:42Z The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstanc https://connect.hyland.com/t5/alfresco-archive/the-error-may-involve-org-activiti-engine-impl-persistence/m-p/235753#M188883 2016-03-22 15:42:59 ERROR org.activiti.engine.impl.interceptor.CommandContext:140 - Error while closing command contextorg.apache.ibatis.exceptions.PersistenceException: ### Error querying database.&nbsp; Cause: org.postgresql.util.PSQLException: An I/O error occured while sending to the backend.### The Sat, 26 Mar 2016 14:46:42 GMT https://connect.hyland.com/t5/alfresco-archive/the-error-may-involve-org-activiti-engine-impl-persistence/m-p/235753#M188883 rahuls16 2016-03-26T14:46:42Z Re: The error may involve org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity.selectHistoricProcessInstanc https://connect.hyland.com/t5/alfresco-archive/the-error-may-involve-org-activiti-engine-impl-persistence/m-p/235754#M188884 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><SPAN>could you please provide some details about your setup?</SPAN><BR /><SPAN>Activiti version, database version (also if you did some particular settings), etc</SPAN><BR /><BR /><SPAN>generally speaking you have to watch around the "max_connections" parameter.</SPAN><BR /><SPAN>see: </SPAN><A href="https://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server" rel="nofollow noopener noreferrer">https://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server</A></BODY></HTML> Mon, 28 Mar 2016 08:47:59 GMT https://connect.hyland.com/t5/alfresco-archive/the-error-may-involve-org-activiti-engine-impl-persistence/m-p/235754#M188884 vasile_dirla 2016-03-28T08:47:59Z