Hi, When I click Cancel Button in JSF it's call the below method public String cancelTask(){ TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(taskVO.getTaskInstanceId()); taskInstance.setActorId(null); graphSession.saveProcessInstance(taskInstance.getTaskMgmtInstance().getProcessInstance()); return "summary"; } The above code sets the "ActorId" to "null" for a particular task thus releasing it (in JBPM database). My doubt is The code in blue has to be replicated for all the tasks which are tied to a user during: (1) Session Timeout (2) Browser Close/Exit when the page session timeout or user click to close the browser how to Actorid set to null Please tell me the solution regarding the above. Thanks and regards Sri View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3965660#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...