[jBPM] - JBPM 5.4 - boundary signal event to abort reusable subprocess stopped in a Human Task

Jose Pereira [https://community.jboss.org/people/zeca9] created the discussion

"JBPM 5.4 - boundary signal event to abort reusable subprocess stopped in a Human Task"

To view the discussion, visit: https://community.jboss.org/message/827709#827709

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Hi,

I'm new in Jbpm and beacuse of that, struggling to get something work  :) 

Let me explain:
I've a *main* process with a reusable subprocess that have a boundary signal event:
 https://community.jboss.org/servlet/JiveServlet/showImage/2-827709-21129/Teste.png  https://community.jboss.org/servlet/JiveServlet/downloadImage/2-827709-21129/450-236/Teste.png 
The reusable *subprocess* calls a process that have a script, a catch signal event and a human task:
 https://community.jboss.org/servlet/JiveServlet/showImage/2-827709-21130/TesteSub.png  https://community.jboss.org/servlet/JiveServlet/downloadImage/2-827709-21130/450-126/TesteSub.png 

*CASE 1: Perfect!*
When I launch a instance by API:
+ProcessInstance processInstance = ksession.startProcess("Process_Name", params);+
everything works like expected. The instance stops in signal event from the *subprocess*, waiting to be fired.

Then I signal the boundary event from the *main* process;
+ksession.signalEvent(boundary_event, params, idMain);+
and again the result is the expected: The *subprocess* is aborted and *main* jumps to the next task (Scrip Task 1).

*CASE 2: Error!*
I start the instance like in case 1, but this time I signal the event of the subprocess, making this go foward to the human task TESTE_SUB.
Then I signal the boundary event from the *main* process (just like in case 1) and I get a error!!!

Log:
+1    12/07 11:03:04,464[main] ERROR drools.persistence.SingleSessionCommandService.rollbackTransaction  - Could not commit session+
+java.lang.RuntimeException: unable to execute Action: null+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.executeAction(ExtendedNodeInstanceImpl.java:74)+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerEvent(ExtendedNodeInstanceImpl.java:58)+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted(ExtendedNodeInstanceImpl.java:46)+
+          at org.jbpm.workflow.instance.node.EventNodeInstance.triggerCompleted(EventNodeInstance.java:66)+
+          at org.jbpm.workflow.instance.node.EventNodeInstance.signalEvent(EventNodeInstance.java:50)+
+          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:356)+
+          at org.drools.command.runtime.process.SignalEventCommand.execute(SignalEventCommand.java:95)+
+          at org.drools.command.impl.DefaultCommandService.execute(DefaultCommandService.java:36)+
+          at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:373)+
+          at org.drools.command.impl.CommandBasedStatefulKnowledgeSession.signalEvent(CommandBasedStatefulKnowledgeSession.java:210)+
+          at com.sample.ProcessTestes.sinalizarEvento(ProcessTestes.java:127)+
+          at com.sample.ProcessTestes.main(ProcessTestes.java:75)+
+Caused by: java.lang.NullPointerException+
+          at org.jbpm.task.service.hornetq.HornetQTaskClientConnector.write(HornetQTaskClientConnector.java:194)+
+          at org.jbpm.task.service.TaskClient.getTaskByWorkItemId(TaskClient.java:473)+
+          at org.jbpm.task.service.SyncTaskServiceWrapper.getTaskByWorkItemId(SyncTaskServiceWrapper.java:364)+
+          at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler.abortWorkItem(GenericHTWorkItemHandler.java:203)+
+          at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalAbortWorkItem(JPAWorkItemManager.java:78)+
+          at org.jbpm.workflow.instance.node.WorkItemNodeInstance.cancel(WorkItemNodeInstance.java:257)+
+          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.setState(WorkflowProcessInstanceImpl.java:257)+
+          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.setState(WorkflowProcessInstanceImpl.java:269)+
+          at org.jbpm.workflow.instance.node.SubProcessNodeInstance.cancel(SubProcessNodeInstance.java:161)+
+          at org.jbpm.process.instance.impl.CancelNodeInstanceAction.execute(CancelNodeInstanceAction.java:44)+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.executeAction(ExtendedNodeInstanceImpl.java:68)+
+          ... 11 more+
+Exception in thread "main" java.lang.RuntimeException: unable to execute Action: null+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.executeAction(ExtendedNodeInstanceImpl.java:74)+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerEvent(ExtendedNodeInstanceImpl.java:58)+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted(ExtendedNodeInstanceImpl.java:46)+
+          at org.jbpm.workflow.instance.node.EventNodeInstance.triggerCompleted(EventNodeInstance.java:66)+
+          at org.jbpm.workflow.instance.node.EventNodeInstance.signalEvent(EventNodeInstance.java:50)+
+          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:356)+
+          at org.drools.command.runtime.process.SignalEventCommand.execute(SignalEventCommand.java:95)+
+          at org.drools.command.impl.DefaultCommandService.execute(DefaultCommandService.java:36)+
+          at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:373)+
+          at org.drools.command.impl.CommandBasedStatefulKnowledgeSession.signalEvent(CommandBasedStatefulKnowledgeSession.java:210)+
+          at com.sample.ProcessTestes.sinalizarEvento(ProcessTestes.java:127)+
+          at com.sample.ProcessTestes.main(ProcessTestes.java:75)+
+Caused by: java.lang.NullPointerException+
+          at org.jbpm.task.service.hornetq.HornetQTaskClientConnector.write(HornetQTaskClientConnector.java:194)+
+          at org.jbpm.task.service.TaskClient.getTaskByWorkItemId(TaskClient.java:473)+
+          at org.jbpm.task.service.SyncTaskServiceWrapper.getTaskByWorkItemId(SyncTaskServiceWrapper.java:364)+
+          at org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler.abortWorkItem(GenericHTWorkItemHandler.java:203)+
+          at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalAbortWorkItem(JPAWorkItemManager.java:78)+
+          at org.jbpm.workflow.instance.node.WorkItemNodeInstance.cancel(WorkItemNodeInstance.java:257)+
+          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.setState(WorkflowProcessInstanceImpl.java:257)+
+          at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.setState(WorkflowProcessInstanceImpl.java:269)+
+          at org.jbpm.workflow.instance.node.SubProcessNodeInstance.cancel(SubProcessNodeInstance.java:161)+
+          at org.jbpm.process.instance.impl.CancelNodeInstanceAction.execute(CancelNodeInstanceAction.java:44)+
+          at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.executeAction(ExtendedNodeInstanceImpl.java:68)+
+          ... 11 more+

Seems that I can´t abort a reusable subprocess when this one is stopped in a human task. Can anyone help me? 

Thanks
+
+
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