[jboss-user] [jBPM Users] - Jbpm 4.0 error prone code...

[jay9981]

We are using Client API for building process definition from XML file and starting execution by using the process def:

Attach is code where we are getting some hibernate error.


protected void processJob(){
              WorkflowProcessInstance wpi = (WorkflowProcessInstance) this.getJobDataObject();
              ExecutionImpl pi = wpi.getJbpmProcessInstace();
              if((pi.getState().equals(ProcessInstance.STATE_CREATED))) {
                     pi.start();
              }
              while (!pi.isEnded()) {
                     if (!terminateJob) {
                           ServerUtils.log(ServerUtils.DEBUG," Moving to next stage.");
                           String execName = null;
                           Iterator itr = pi.findActiveActivityNames().iterator();
                           while(itr.hasNext()) {
                                  execName = (String)itr.next();
                                  ExecutionImpl execution = pi.findActiveExecutionIn(execName);
                                  if(execution.getState().equals(Execution.STATE_INACTIVE_CONCURRENT_ROOT) ||
                                                execution.getState().equals(Execution.STATE_INACTIVE_JOIN) ||
                                                execution.getState().equals(Execution.STATE_INACTIVE_SCOPE)) {
                                         execution = execution.getExecutions().iterator().next();
                                  }
                                  if (execution.isActive() && !execution.isEnded()) {
                                         execution.signal();                                         pi = execution.getProcessInstance();
                                  }
                           }
                     } else {
                           pi.end();
                     }
              }
       }


The highlighted line gives error when it signals on end state (Means when the workflow ends). It state hibernate error as listed below.



org.hibernate.ObjectNotFoundException: No row with the given identifier exists: [org.jbpm.pvm.internal.history.model.HistoryProcessInstanceImpl#0]
                at org.hibernate.impl.SessionFactoryImpl$2.handleEntityNotFound(SessionFactoryImpl.java:409)
                at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:108)
                at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:97)
                at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:140)
                at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)
                at org.jbpm.pvm.internal.history.model.HistoryProcessInstanceImpl_$$_javassist_2.setEndTime(HistoryProcessInstanceImpl_$$_javassist_2.java)
                at org.jbpm.pvm.internal.history.events.ProcessInstanceEnd.process(ProcessInstanceEnd.java:41)
                at org.jbpm.pvm.internal.history.HistorySessionImpl.process(HistorySessionImpl.java:31)
                at org.jbpm.pvm.internal.history.HistoryEvent.fire(HistoryEvent.java:61)
                at org.jbpm.pvm.internal.model.ExecutionImpl.end(ExecutionImpl.java:353)
                at org.jbpm.pvm.internal.model.ExecutionImpl.end(ExecutionImpl.java:311)
                at org.jbpm.jpdl.internal.activity.EndActivity.execute(EndActivity.java:80)
                at org.jbpm.jpdl.internal.activity.EndActivity.execute(EndActivity.java:45)
                at org.jbpm.pvm.internal.model.op.ExecuteActivity.perform(ExecuteActivity.java:60)
                at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperationSync(ExecutionImpl.java:637)
                at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperation(ExecutionImpl.java:597)
                at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:398)
                at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:380)
                at com.santafe.soa.server.engine.workflow.WorkflowJob.processJob(WorkflowJob.java:95)
                at com.santafe.soa.server.engine.workflow.WorkflowJob.run(WorkflowJob.java:123)
                at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
                at java.lang.Thread.run(Thread.java:619)


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