JBoss Community

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:

The reusable subprocess calls a process that have a script, a catch signal event and a human task:

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