Prabakaran Kamaraj [https://community.jboss.org/people/prabhakarannk] created the discussion "When trying to complete task getting NullPointerException at WorkItemNodeInstance.java:298" To view the discussion, visit: https://community.jboss.org/message/823176#823176 -------------------------------------------------------------- Hi all, We are using JBPM 5.2, when When trying to complete Human task, we are getting below error java.lang.NullPointerException at org.jbpm.workflow.instance.node.WorkItemNodeInstance.workItemCompleted(WorkItemNodeInstance.java:298) at org.jbpm.workflow.instance.node.WorkItemNodeInstance.signalEvent(WorkItemNodeInstance.java:277) at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:326) at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.completeWorkItem(JPAWorkItemManager.java:119) at org.drools.command.runtime.process.CompleteWorkItemCommand.execute(CompleteWorkItemCommand.java:69) at org.drools.command.runtime.process.CompleteWorkItemCommand.execute(CompleteWorkItemCommand.java:32) at org.drools.command.impl.DefaultCommandService.execute(DefaultCommandService.java:36) at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:345) at org.drools.command.impl.CommandBasedStatefulKnowledgeSession$1.completeWorkItem(CommandBasedStatefulKnowledgeSession.java:150) if any has faced same issue and knows the solution, please provide. Thanks and Regards, Praba -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/823176#823176] Start a new discussion in jBPM Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]