[jboss-user] [JBoss jBPM] - Re: Need help to fix timer issue

[Arunkumar DSRC]

For example plz conside the following:


  | <process-definition xmlns="urn:jbpm.org:jpdl-3.2" name="process6">
  | 
  | 	<start-state name="start-state1">
  | 		<transition to="tsmactoncr"></transition>
  | 	</start-state>
  | 
  | 	<state name="tsmactoncr" async="true">
  | 		<timer name="timer" duedate="7 seconds" transition="to escalated">
  | 			<action class="yourpackage.Action1"></action>
  | 		</timer>
  | 		<transition to="normailflow" name="to normal flow"></transition>
  | 		<transition to="escalationflow" name="to escalated"></transition>
  | 	</state>
  | 	
  | 	<state name="normailflow">
  | 		<event type="node-enter">
  | 			<script>
  | 				System.out.println("Node-enter: normailflow");
  | 			</script>		
  | 		</event>
  | 		<transition to="end-state1"></transition>
  | 	</state>
  | 	
  | 	<task-node name="escalationflow">
  | 			<task name="mail to customer" notify="true">
  | 				<assignment class="yourcompany.MailAssignmentHandler"></assignment>
  | 			</task>
  | 			<transition to="end-state1" name="to-end1"></transition>
  | 	</task-node>
  | 	
  | 	<end-state name="end-state1"></end-state>
  | 
  | </process-definition>
  | 

In above code I am trying to send a mail using task-node when the timer expires and it is escalation flow. when I try to have a AssignmentHandler it gives the Following Exception


org.jbpm.graph.def.DelegationException
	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:382)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
	at org.jbpm.graph.def.ProcessDefinition$$EnhancerByCGLIB$$b2e1ca8f.raiseException()
	at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:373)
	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:276)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
	at org.jbpm.graph.node.State$$EnhancerByCGLIB$$993b01f9.executeAction()
	at org.jbpm.job.Timer.execute(Timer.java:56)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
	at org.jbpm.job.Job$$EnhancerByCGLIB$$e4a64402.execute()
	at org.jbpm.job.executor.JobExecutorThread.executeJob(JobExecutorThread.java:173)
	at org.jbpm.job.executor.JobExecutorThread.run(JobExecutorThread.java:64)
Caused by: java.lang.NullPointerException
	at org.jbpm.graph.def.Action.execute(Action.java:122)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
	at org.jbpm.graph.def.Action$$EnhancerByCGLIB$$cc035953.execute()
	at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:259)
	... 15 more



Any clue.
Thanks in advance
-Arunkumar


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