alain1106 [http://community.jboss.org/people/alain1106] created the discussion "org.jbpm.task.service.PermissionDeniedException in JBPM 5.1" To view the discussion, visit: http://community.jboss.org/message/634129#634129 -------------------------------------------------------------- Hello I can't seem to be able to claim/start a task , getting the following error : org.jbpm.task.service.PermissionDeniedException: Server-side Exception: User '[User:'john']' does not have permissions to execution operation 'Claim' on task id 3 I am using the demo setup of JBPM 5.1, launching through the jbpm-installer provided with the install package. I am using the user "john" and group "PM" provided in the mvel files that come with the demo setup. The error occurs when claiming the task , with the following code :         try{         TaskClient client = new TaskClient(new MinaTaskClientConnector("client 1", new MinaTaskClientHandler(SystemEventListenerFactory.getSystemEventListener())));         client.connect("127.0.0.1", 9123);         Thread.sleep(1000);         // getting potential tasks for user "john"         List<String> groupsJohn = new ArrayList<String>();         groupsJohn.add("PM");         //display tasks         BlockingTaskSummaryResponseHandler taskSummaryResponseHandler = new BlockingTaskSummaryResponseHandler();         client.getTasksAssignedAsPotentialOwner(null,groupsJohn, "en-UK", taskSummaryResponseHandler);         List<TaskSummary> myTasks = taskSummaryResponseHandler.getResults();         //...         //Claim task for John & start it         BlockingTaskOperationResponseHandler taskOperationResponseHandler = new BlockingTaskOperationResponseHandler();         client.claim(3, "john", taskOperationResponseHandler  );         taskOperationResponseHandler.waitTillDone(1000);         }catch (Throwable t) {             t.printStackTrace();     } I have checked the following already : - Task status for Task id 3  is "Ready", no actor assigned yet. - Group and actor names are correctly defined in the mvel files. - The Human Task node in my flow has the Group "PM" defined in its group property, and the actor id is left empty. - If i assign actor "john" to the human task in the bpmn flow , I can start the task correctly - I can start the task using Administrator. - getTasksAssignedAsPotentialOwner("John",groupsJohn, "en-UK", taskSummaryResponseHandler)gives the same error as the line above So it really has to do with the group , but I can't figure out why ... -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/634129#634129] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]