[jboss-user] [jBPM] - jbpm 5.3 and HumanTaskStartupServlet from example

franco80 do-not-reply at jboss.com
Thu Nov 15 04:35:27 EST 2012

franco80 [https://community.jboss.org/people/franco80] created the discussion

"jbpm 5.3 and HumanTaskStartupServlet from example"

To view the discussion, visit: https://community.jboss.org/message/776625#776625


I have a question, when build my application with servlets, but without stop server I always recived error:

10:29:18,310 ERROR [stderr] (Thread-69) Exception in thread "Thread-69" java.lang.RuntimeException: Could not start human task server, address already in use, is it possible that another instance of the task server is already running?

10:29:18,310 ERROR [stderr] (Thread-69)     at org.jbpm.task.service.mina.BaseMinaTaskServer.run(BaseMinaTaskServer.java:64)

10:29:18,310 ERROR [stderr] (Thread-69)     at java.lang.Thread.run(Thread.java:722)

code init servlet method is:

          EntityManagerFactory emfTask = Persistence
            TaskService taskService = new TaskService(emfTask,

            /* Add the required users */
            TaskServiceSession ts = taskService.createSession();
            ts.addUser(new User("admin"));
            ts.addGroup(new Group("MANAGER"));

            /* Start Mina server for HT */
            MinaTaskServer server = new MinaTaskServer(taskService);
            /* Thread */
            thread = new Thread(server) {};

I must always stop the jboss server when I throw new version appplication or this error is 'harmless'  :)  ?

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