about the map
my map:
String str1="test1";
String str2="test2";
String str3="test3";
map.put(str1, str1);
map.put(str2, str2);
map.put(str3, str3);
1 when i put one parameter in map ，it works fine。
2 when i put one more parameters in map，occur error 。
thank you inadvance.
the erro ：
Error updating database. Cause: java.sql.SQLException: Invalid argument value: java.io.NotSerializableException
### The error may involve org.activiti.engine.impl.persistence.entity.HistoricVariableInstanceEntity.bulkInsertHistoricVariableInstance-Inline
### The error occurred while setting parameters
### SQL: insert into ACT_HI_VARINST (ID_, PROC_INST_ID_, EXECUTION_ID_, TASK_ID_, NAME_, REV_, VAR_TYPE_, BYTEARRAY_ID_, DOUBLE_, LONG_ , TEXT_, TEXT2_, CREATE_TIME_, LAST_UPDATED_TIME_) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) , (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
### Cause: java.sql.SQLException: Invalid argument value: java.io.NotSerializableException
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)
at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:147)
at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:134)
at org.activiti.engine.impl.db.DbSqlSession.flushBulkInsert(DbSqlSession.java:850)
at org.activiti.engine.impl.db.DbSqlSession.flushPersistentObjects(DbSqlSession.java:820)
at org.activiti.engine.impl.db.DbSqlSession.flushInserts(DbSqlSession.java:797)
at org.activiti.engine.impl.db.DbSqlSession.flush(DbSqlSession.java:618)
at org.activiti.engine.impl.interceptor.CommandContext.flushSessions(CommandContext.java:212)
at org.activiti.engine.impl.interceptor.CommandContext.close(CommandContext.java:138)
at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:66)
at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)
at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)
at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)
at org.activiti.engine.impl.RuntimeServiceImpl.startProcessInstanceByKey(RuntimeServiceImpl.java:84)
at demo.EngineController.startProcess(EngineController.java:58)
at demo.Test.testStartProcess(Test.java:52)
at demo.Test.main(Test.java:30)
Caused by: java.sql.SQLException: Invalid argument value: java.io.NotSerializableException
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920)
at com.mysql.jdbc.PreparedStatement.setSerializableObject(PreparedStatement.java:4412)
at com.mysql.jdbc.PreparedStatement.setObject(PreparedStatement.java:4083)
at org.apache.ibatis.type.ObjectTypeHandler.setNonNullParameter(ObjectTypeHandler.java:28)
at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:46)
at org.apache.ibatis.type.UnknownTypeHandler.setNonNullParameter(UnknownTypeHandler.java:37)
at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:46)
at org.apache.ibatis.executor.parameter.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:91)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:77)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:58)
at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:71)
at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:44)
at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:108)
at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:75)
at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:145)
… 15 more
Caused by: java.io.NotSerializableException: org.activiti.engine.impl.variable.StringType
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
at com.mysql.jdbc.PreparedStatement.setSerializableObject(PreparedStatement.java:4401)
… 28 more
