[jboss-user] [jBPM] - TaskSummary.getName() returns null while using persistence

Devinder Singh do-not-reply at jboss.com
Tue Apr 17 12:38:14 EDT 2012

Devinder Singh [https://community.jboss.org/people/devinderpal] created the discussion

"TaskSummary.getName() returns null while using persistence"

To view the discussion, visit: https://community.jboss.org/message/730629#730629

  I'm using persistence for using jBPM 5.2 with Jboss 7. Server startups properly and jBPM also loads up properly. I'm able to start the processes using jBPM APIs. In my BPMN file, I have usertasks defined and once process is started, process stops at userTask for taking in feedback of the user, which is the expected flow.
But now I want to show to user various human tasks that he's the owner of and also wants to display the name of the task that's currently assigned to him. So I'm getting TaskSummary by using below code:

BlockingTaskSummaryResponseHandler responseHandler = new BlockingTaskSummaryResponseHandler();
                    taskClient.getTasksAssignedAsPotentialOwner(userId, "en-uk", responseHandler);
                    List<TaskSummary> taskSummaries = responseHandler.getResults();

It successfully returns the TaskSummary List but when I do getName or getDescription on TaskSummary instance, it returns null.
Then I looked at named queries defined in Task-orm.xml. Seems like it's getting name and description from I18NText table, which is empty in my database. That looks like a problem.

Can someone please help with this? How can I make TaskSummary.getName() return right values. 

I''m using below code to instantiate StatefulKnowledgeSession:

KnowledgeBase kbase = readKnowledgeBase(); // read knowledgebase from a private method

                    Environment env = KnowledgeBaseFactory.newEnvironment();
                    env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
                    env.set( EnvironmentName.TRANSACTION_MANAGER,
                                                            /* setting my transaction manager*/ );
                    env.set(EnvironmentName.GLOBALS, new MapGlobalResolver());

                    Integer ksessionId = retrieveKnowledgeSessionId(); //retrieves knowledge session id from DB
                    if (ksessionId == null)
  // create a new knowledge session that uses JPA to store the runtime state
  ksession =
                                            JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env );
  ksession =
                                                  JPAKnowledgeService.loadStatefulKnowledgeSession(ksessionId, kbase, null, env);

                    jbpmLogger = new JPAWorkingMemoryDbLogger(ksession);

                    CommandBasedWSHumanTaskHandler humanTaskHandler = 
new CommandBasedWSHumanTaskHandler(ksession);
ksession.getWorkItemManager().registerWorkItemHandler("Human Task", humanTaskHandler);

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