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 -------------------------------------------------------------- hello 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                     .createEntityManagerFactory("org.jbpm.task");             TaskService taskService = new TaskService(emfTask,                     SystemEventListenerFactory.getSystemEventListener());             /* 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) {};             thread.start(); I must always stop the jboss server when I throw new version appplication or this error is 'harmless' :) ? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/776625#776625] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]