[jboss-dev-forums] [jBPM Development] - Unable to mark a task completed when running the task in a separate thread

Connie Yang [http://community.jboss.org/people/connie.yang] created the discussion "Unable to mark a task completed when running the task in a separate thread" To view the discussion, visit: http://community.jboss.org/message/612820#612820 -------------------------------------------------------------- Hi, I have a WorkItemHandler that can run the service task either in the main thread or in a separate thread.  This is my way of handling for-each parallel (aka fanout).  When the service task is run in a separate thread, I have been experiencing a NullPointerException with the following stack trace upon marking the task completed (via NodeInstanceImpl.triggerCompleted).  What am I missing? 1. java.lang.NullPointerException       at org.jbpm.process.instance.impl.ProcessInstanceImpl.getProcess(ProcessInstanceImpl.java:67)       at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.getWorkflowProcess(WorkflowProcessInstanceImpl.java:180)       at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.getNodeContainer(WorkflowProcessInstanceImpl.java:68)       at org.jbpm.workflow.instance.impl.NodeInstanceImpl.getNode(NodeInstanceImpl.java:100)       at org.jbpm.workflow.instance.node.ActionNodeInstance.getActionNode(ActionNodeInstance.java:35)       at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:43)       at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)       at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)       at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)       at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted(ExtendedNodeInstanceImpl.java:47)       at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:162)       at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:143)       at org.jbpm.workflow.instance.node.WorkItemNodeInstance.triggerCompleted(WorkItemNodeInstance.java:239)       at org.jbpm.workflow.instance.node.WorkItemNodeInstance.workItemCompleted(WorkItemNodeInstance.java:301)       at org.jbpm.workflow.instance.node.WorkItemNodeInstance.signalEvent(WorkItemNodeInstance.java:277)       at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:333)       at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.completeWorkItem(JPAWorkItemManager.java:117)       at com.ebay.cloud.orchest.jbpm.LcmPojoWorkItemHandler$1.run(LcmPojoWorkItemHandler.java:95)       at com.ebay.kernel.executor.TaskExecutor$Adapter.call(TaskExecutor.java:587) Thanks in advance! Connie -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/612820#612820] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]