Can't evaluate boolean expression in usertask

[fellowtom]

Hi,

as the topic says, I get a warning when completing a usertask. My process: User A starts it and some variables are created and some task are done. A parallel gateway leads to eventbased gateway and a usertask of different lane. One event is a timer the other a signal. After User B fulfills that usertask a signal is thrown and User A can continue. The variable "buyArticle" is type of boolean and the userform property type is the same. If I finish that task I get: Warning –> "Error while evaluation boolean expression: #{buyArticle}"

I evaluated strings and longs inusertaks (User A) before without problem. Is there a problem because variables are defined in lane 1 and this usertask is lane2 (but in scripttask(lane2) the variable is recognized correctly[defined with execution.setVariable("buyArticle,true")]).

I have no idea whats wrong with this expression. I hope someone can help me with this issue.

With kind regards,

FellowTom

<userTask id="usertask4" name="check article and do purchase decision" activiti:assignee="kermit" activiti:candidateUsers="kermit">      <extensionElements>        <activiti:formProperty id="wannaBuyArticle" name="Artikel kaufen" type="boolean" expression="#{buyArticle}" required="true"></activiti:formProperty>      </extensionElements></userTask>‍‍‍‍‍‍‍

09:08:11,680 [http-bio-8080-exec-3] ERROR org.activiti.engine.impl.interceptor.CommandContext  - Error while closing command contextorg.activiti.engine.ActivitiException: Error while evaluating expression: #{buyArticle}        at org.activiti.engine.impl.el.JuelExpression.setValue(JuelExpression.java:71)        at org.activiti.engine.impl.form.FormPropertyHandler.submitFormProperty(FormPropertyHandler.java:108)        at org.activiti.engine.impl.form.DefaultFormHandler.submitFormProperties(DefaultFormHandler.java:97)        at org.activiti.engine.impl.cmd.SubmitTaskFormCmd.execute(SubmitTaskFormCmd.java:45)        at org.activiti.engine.impl.cmd.NeedsActiveTaskCmd.execute(NeedsActiveTaskCmd.java:61)        at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)        at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:61)        at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:42)        at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)        at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40)        at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)        at org.activiti.engine.impl.FormServiceImpl.submitTaskFormData(FormServiceImpl.java:70)        at org.activiti.explorer.ui.task.TaskDetailPanel$4.handleFormSubmit(TaskDetailPanel.java:315)        at org.activiti.explorer.ui.form.FormPropertiesEventListener.componentEvent(FormPropertiesEventListener.java:39)        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)        at java.lang.reflect.Method.invoke(Method.java:601)        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510)        at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)        at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1219)        at org.activiti.explorer.ui.form.FormPropertiesForm.access$000(FormPropertiesForm.java:45)        at org.activiti.explorer.ui.form.FormPropertiesForm$1.buttonClick(FormPropertiesForm.java:139)        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)        at java.lang.reflect.Method.invoke(Method.java:601)        at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510)        at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)        at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1219)        at com.vaadin.ui.Button.fireClick(Button.java:567)        at com.vaadin.ui.Button.changeVariables(Button.java:223)        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.changeVariables(AbstractCommunicationManager.java:1460)        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractCommunicationManager.java:1404)        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1329)        at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:761)        at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:325)        at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)        at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)        at org.activiti.explorer.filter.ExplorerFilter.doFilter(ExplorerFilter.java:44)        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)        at java.lang.Thread.run(Thread.java:722)Caused by: org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'buyArticle'        at org.activiti.engine.impl.juel.AstIdentifier.setValue(AstIdentifier.java:97)        at org.activiti.engine.impl.juel.AstEval.setValue(AstEval.java:86)        at org.activiti.engine.impl.juel.TreeValueExpression.setValue(TreeValueExpression.java:138)        at org.activiti.engine.impl.delegate.ExpressionSetInvocation.invoke(ExpressionSetInvocation.java:37)        at org.activiti.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:37)        at org.activiti.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:25)        at org.activiti.engine.impl.el.JuelExpression.setValue(JuelExpression.java:67)        … 57 more‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[fellowtom]

Hi,

i solved this problem. I just wasn't fit enough with variables and expressions in user tasks yet.
My bad, sry.
Everything fine now…

Greetings

[frederikherema1]

Glad it worked out for you? Thanks for reporting back