hua zhong [https://community.jboss.org/people/ghuazh] created the discussion "jBPM5.3 LocalHumanTaskService" To view the discussion, visit: https://community.jboss.org/message/739520#739520 -------------------------------------------------------------- Hi, all I'm using jBPM5.3 final in our project, and  try to use local human task handler. I got too many problems need someone help me. 1. to start a process: Map<String, Object> params = new HashMap<String, Object>(); params.put("act_rule_launcher", "krisv"); params.put("act_rule_dept_manager", "john"); params.put("act_checker", "mary"); params.put("act_approver", "tracy");   StatefulKnowledgeSession ksession = BPM.getBPMService().getSession("com.tmt"); HTWorkItemHandler handler = new HTWorkItemHandler(ksession); ksession.getWorkItemManager().registerWorkItemHandler("Human Task", handler); ksession.startProcess("com.tmt.ProjectPlanApproval", params); HTWorkItemHandler is a local work item extends AbstractHTWorkItemHandler. Exception: 0    03/06 18:06:18,379[UIThread [1gpcqnco5rnu6n5d7u3otffrb]] ERROR hibernate.transaction.JDBCTransaction.toggleAutoCommit  - Could not toggle autocommit java.sql.SQLException: autocommit is not allowed on a resource enlisted in a global transaction     at bitronix.tm.resource.jdbc.JdbcConnectionHandle.setAutoCommit(JdbcConnectionHandle.java:177)     at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)     at java.lang.reflect.Method.invoke(Unknown Source) I guess maybe I need to change persistence.xml to use JTA? <persistence-unit name="org.jbpm.task"> change to: <persistence-unit name="org.jbpm.task" transaction-type="JTA"> After that, It's ok. but soon I got the 2nd problem, see below. 2. complete a task HTTaskService service = BPM.getHumanTaskService().getTaskService(); List<TaskSummary> tasks = service.getTasksAssignedAsPotentialOwner(userId,"en-UK"); if(tasks.isEmpty()){ return; } for(int i =0;i<tasks.size();i++){ TaskSummary task = tasks.get(i); System.out.println(userId+">>"+task.getId()+task.getName()); } long taskId = tasks.get(0).getId(); service.start(taskId, userId); service.complete(taskId, userId,null); HTTaskService is a taskservice extends LocalTaskService. BPM.getHumanTaskService().getTaskService() will return a new HTTaskService from a org.jbpm.task.service.TaskService. in my application only one org.jbpm.task.service.TaskService will created, every HTTaskService whil use it. service.start is ok. but when service complete, it brings a new exception: javax.persistence.TransactionRequiredException: No active JTA transaction on joinTransaction call     at org.hibernate.ejb.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:458)     at org.hibernate.ejb.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:431)     at org.drools.persistence.jpa.JpaPersistenceContextManager.beginCommandScopedEntityManager(JpaPersistenceContextManager.java:83)     at org.jbpm.persistence.processinstance.JPAProcessInstanceManager.getProcessInstance(JPAProcessInstanceManager.java:75)     at org.jbpm.process.instance.ProcessRuntimeImpl.getProcessInstance(ProcessRuntimeImpl.java:204)     at org.drools.common.AbstractWorkingMemory.getProcessInstance(AbstractWorkingMemory.java:1100)     at org.drools.impl.StatefulKnowledgeSessionImpl.getProcessInstance(StatefulKnowledgeSessionImpl.java:297)     at org.drools.persistence.jpa.processinstance.JPAWorkItemManager.completeWorkItem(JPAWorkItemManager.java:117)     at com.sg.bpm.service.task.HTWorkItemHandler$TaskCompletedHandler.execute(HTWorkItemHandler.java:165)     at org.jbpm.task.service.local.LocalTaskService$SimpleEventTransport.trigger(LocalTaskService.java:307)     at org.jbpm.task.event.MessagingTaskEventListener.taskCompleted(MessagingTaskEventListener.java:73)     at org.jbpm.task.event.TaskEventSupport.fireTaskCompleted(TaskEventSupport.java:46)     at org.jbpm.task.service.TaskServiceSession.postTaskCompleteOperation(TaskServiceSession.java:502)     at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:468)     at org.jbpm.task.service.local.LocalTaskService.complete(LocalTaskService.java:80) I test task client of HornetQ, everything is ok. but how to use local service? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/739520#739520] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]