1 Reply Latest reply on Jun 13, 2016 10:43 PM by Abhijit Humbe

    Unable to Start and Complete Task in JBPM

    Karthikeyan Subramaniam Newbie

      have created the Business process in KieWorkbench and builded the jar as follows: Business Process : Process ID :myWorkflow.process

      enter image description here

      Create task -Actor : myUser1

      Submit task -Actor : myUser2

      GAV: group :com.mycom.app.bpm

      artifact : myWorkflow

      version :1.0

      As per my requirement i need to create the task([First Task]start and complete) in one module(Test1.war) and submit the task[Second Task]start and complete) in another module(Test2.war). Each modules has its separate UI.

      Code in Test1.war: RuntimeEngine creation Process :

      String deploymentId = "com.sample:example:1.0"; ReleaseId releaseId = new ReleaseIdImpl("com.mycom.app.bpm",  "myWorkflow",  "1.0"); EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.domain"); RuntimeEnvironmentBuilder builder = RuntimeEnvironmentBuilder.Factory.get().newDefaultBuilder(releaseId).entityManagerFactory(emf).userGroupCallback(new CustomUserCallBack()); RuntimeEngine runtimeEngine = RuntimeManagerFactory.Factory.get().newSingletonRuntimeManager(builder.get(), deploymentId).getRuntimeEngine(null); KieSession ksession =runtimeEngine.getKieSession(); ProcessInstance processInstance = ksession.startProcess("myWorkflow.process", null);  TaskService taskService = runtimeEngine.getTaskService(); List<Status> status = new ArrayList<Status>(); status.add(Status.Ready); status.add(Status.Reserved);  List<TaskSummary> tasks = taskService.getTasksByStatusByProcessInstanceId(processInstance.getId(), status, "en-UK"); taskService.start(tasks.get(0).getId(), "myUser1"); taskService.complete(tasks.get(0).getId(), "myUser1", null);

      I am saving processIntanceId in seperate table.

      Code in Test2.war RuntimeEngine creation Process :

      Here i am retrieving the processIntanceId and Submitting the task(Second task in Business Process)

      String deploymentId = "com.sample:example:1.0"; ReleaseId releaseId = new ReleaseIdImpl("com.mycom.app.bpm",  "myWorkflow",  "1.0"); EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.domain"); RuntimeEnvironmentBuilder builder = RuntimeEnvironmentBuilder.Factory.get().newDefaultBuilder(releaseId).entityManagerFactory(emf).userGroupCallback(new CustomUserCallBack()); RuntimeEngine runtimeEngine = RuntimeManagerFactory.Factory.get().newSingletonRuntimeManager(builder.get(), deploymentId).getRuntimeEngine(null); KieSession ksession =runtimeEngine.getKieSession(); TaskService taskService = runtimeEngine.getTaskService();  List<Status> status = new ArrayList<Status>(); status.add(Status.Ready); status.add(Status.Reserved);  List<TaskSummary> tasks = taskService.getTasksByStatusByProcessInstanceId(processInstance.getId(), status, "en-UK"); taskService.start(tasks.get(0).getId(), "myUser2"); taskService.complete(tasks.get(0).getId(), "myUser2", null);

      When i am the starting the task(Submit) in second module(Test2.war), I got the following exception :

      [com.arjuna.ats.arjuna] (ajp-localhost-127.0.0.1-8009-3) ARJUNA012125: TwoPhaseCoordinator.beforeCompletion - failed for SynchronizationImple< 0:ffff0a04302f:6c42330f:57515432:1cf9, org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization@5cf07878

      : javax.persistence.OptimisticLockException: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.drools.persistence.info.SessionInfo#11629] at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1390) at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1308) at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1289) at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1295) at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1481) at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76) [jbossjts-4.16.2.Final.jar:] at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273) [jbossjts-4.16.2.Final.jar:] at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93) [jbossjts-4.16.2.Final.jar:] at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164) [jbossjts-4.16.2.Final.jar:] at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165) [jbossjts-4.16.2.Final.jar:] at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117) [jbossjts-4.16.2.Final.jar:] at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75) [jbossjts-integration-4.16.2.Final.jar:] at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:167) [jboss-transaction-spi-7.0.0.Final.jar:7.0.0.Final] at org.drools.persistence.jta.JtaTransactionManager.commit(JtaTransactionManager.java:226) [drools-persistence-jpa-6.2.0.Final.jar:6.2.0.Final] at org.jbpm.services.task.persistence.TaskTransactionInterceptor.execute(TaskTransactionInterceptor.java:56) [jbpm-human-task-jpa-6.2.0.Final.jar:6.2.0.Final] at org.drools.core.command.impl.AbstractInterceptor.executeNext(AbstractInterceptor.java:41) [drools-core-6.2.0.Final.jar:6.2.0.Final] at org.drools.persistence.jta.TransactionLockInterceptor.execute(TransactionLockInterceptor.java:79) [drools-persistence-jpa-6.2.0.Final.jar:6.2.0.Final] at org.jbpm.services.task.commands.TaskCommandExecutorImpl.execute(TaskCommandExecutorImpl.java:40) [jbpm-human-task-core-6.2.0.Final.jar:6.2.0.Final] at org.jbpm.services.task.impl.command.CommandBasedTaskService.complete(CommandBasedTaskService.java:156) [jbpm-human-task-core-6.2.0.Final.jar:6.2.0.Final] at org.jbpm.runtime.manager.impl.task.SynchronizedTaskService.complete(SynchronizedTaskService.java:130) [jbpm-runtime-manager-6.2.0.Final.jar:6.2.0.Final] Can anyone tell me what mistake i am doing here...