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Re: Can't start a simple loop bpmn process on jbpm-console
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created by <a href="http://community.jboss.org/people/liviah">Livia Hauser</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/631184#631184">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>one good news and one bad news.</p><p>The good news is: Now I can start my process. I added a simple form, contains only a submit button , and reload everthing. Now it starts.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>bad news:</p><p>I run into an NullPoineterException:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>17:01:57,143 ERROR [STDERR] Exception in thread "Thread-35" </p><p>17:01:57,143 ERROR [STDERR] java.lang.NullPointerException</p><p>17:01:57,143 ERROR [STDERR]     at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalExecuteWorkItem(JPAWorkItemManager.java:43)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:105)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.node.JoinInstance.triggerCompleted(JoinInstance.java:152)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.node.JoinInstance.internalTrigger(JoinInstance.java:52)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)</p><p>17:01:57,144 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.node.ActionNodeInstance.triggerCompleted(ActionNodeInstance.java:55)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:51)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.node.SplitInstance.internalTrigger(SplitInstance.java:100)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)</p><p>17:01:57,145 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted(ExtendedNodeInstanceImpl.java:47)</p><p>17:01:57,146 ERROR [STDERR]     at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:162)</p><p>17:01:57,146 ERROR [STDERR]     at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:143)</p><p>17:01:57,146 ERROR [STDERR]     at org.jbpm.workflow.instance.node.WorkItemNodeInstance.triggerCompleted(WorkItemNodeInstance.java:239)</p><p>17:01:57,146 ERROR [STDERR]     at org.jbpm.workflow.instance.node.WorkItemNodeInstance.workItemCompleted(WorkItemNodeInstance.java:301)</p><p>17:01:57,146 ERROR [STDERR]     at org.jbpm.workflow.instance.node.WorkItemNodeInstance.signalEvent(WorkItemNodeInstance.java:277)</p><p>17:01:57,146 ERROR [STDERR]     at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:333)</p><p>17:01:57,146 ERROR [STDERR]     at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.completeWorkItem(JPAWorkItemManager.java:119)</p><p>17:01:57,147 ERROR [STDERR]     at WorkItems.handler.WThread.run(TestSleepHandler.java:74)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thin NPE only occurs if I use a asynchr. behavior. Asynchr. means manager.completeWorkItem is not called by WorkItemHandler, another Thread calls manager.completeWorkItem .</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Some ideas?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Many thanks,</p><p>Liv</p></div>
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