Sam D. [http://community.jboss.org/people/a.d.jbpm] created the discussion "Is there any standard implementation for a local-JVM Task Service" To view the discussion, visit: http://community.jboss.org/message/620971#620971 -------------------------------------------------------------- I tried to adapt the the +WSHumanTaskHandler+ to a +LocalHumanTaskHandler+. But when executing +taskSession.taskOperation(Operation.Complete, task.getId(), "krisv", null, null, null),+ it throws following exception: java.lang.NullPointerException     at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalExecuteWorkItem(JPAWorkItemManager.java:43)     at org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:105)     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.node.SplitInstance.internalTrigger(SplitInstance.java:61)     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.HumanTaskNodeInstance.triggerCompleted(HumanTaskNodeInstance.java:90)     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:119)     at org.jbpm.examples.evaluation.LocalHumanTaskHandler$TaskEventHandler.taskCompleted(LocalHumanTaskHandler.java:330)     at org.jbpm.task.event.TaskEventSupport.fireTaskCompleted(TaskEventSupport.java:47)     at org.jbpm.task.service.TaskServiceSession.taskCompleteOperation(TaskServiceSession.java:402)     at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:352)     at org.jbpm.examples.evaluation.PersistentProcessExample.main(PersistentProcessExample.java:97) Attached you can find my LocalHumanTaskHandler.java and PersistentProcessExample.java (main). FYI, when I use instead of a +JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env )+ a +kbase.newStatefulKnowledgeSession()+ (non-JPA), it works fine. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/620971#620971] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]