gardellajp [https://community.jboss.org/people/gardellajp] created the discussion "LocalTaskService don't remove listeners, it is a bug?" To view the discussion, visit: https://community.jboss.org/message/721802#721802 -------------------------------------------------------------- Hi, Recently I've found that when use LocalTaskService don't remove the listeners that are created in:   public void registerForEvent(EventKey key, boolean remove, EventResponseHandler responseHandler) {     SimpleEventTransport transport =         new SimpleEventTransport(taskServiceSession, responseHandler, remove);     taskServiceSession.getService().getEventKeys().register(key, transport);   } Notice that a client of this method can't remove it later, becouse the method return void. This method is called by SyncWSHumanTaskHandler.connect() private void registerTaskEvents() { TaskCompletedHandler eventResponseHandler = new TaskCompletedHandler();         TaskEventKey key = new TaskEventKey(TaskCompletedEvent.class, -1);         client.registerForEvent(key, false, eventResponseHandler);         key = new TaskEventKey(TaskFailedEvent.class, -1);         client.registerForEvent(key, false, eventResponseHandler);         key = new TaskEventKey(TaskSkippedEvent.class, -1);         client.registerForEvent(key, false, eventResponseHandler);     } See that the listeners aren't save to remove later. If don't remove the listeners, they are invoqued later. I fixed this with an update of LocalTaskService. When register the events, I save each listener to then dispose it.   public void registerForEvent(EventKey key, boolean remove, EventResponseHandler responseHandler) {     SimpleEventTransport transport =         new SimpleEventTransport(taskServiceSession, responseHandler, remove);     taskServiceSession.getService().getEventKeys().register(key, transport);     //ADDED     eventsRegistered.add(new KeyAndTransport(key, transport));    //END ADDED   } The class KeyAndTransport have two instances variables, the key and the transport. The instance variable eventsRegistered is a collection. Then, when is disconnected, I remove the listeners. public void disconnect() throws Exception {     // do nothing     // ADDED     removeListeners();    // END ADDED   }   private synchronized void removeListeners() {     for (KeyAndTransport k : eventsRegistered) {       taskServiceSession.getService().getEventKeys().unregister(k.getKey(), k.getTransport());     }     eventsRegistered.clear();   } I attach the complete file. I want to know if this is a bug or a miss use of this clasess. I have problems when use more than one session, with this change, work well with multiple sessions. Note that in my project I open and close session in each request, so when I close the session (and other resources) I can't remove the listener with the actual API. Juan -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/721802#721802] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]