ok, i tried to get back the taskinstances which were assigned for many users, but it didn't work at first. so i tried to get the taskInstances for which my actor is pooled for, there i got the needed instances. List taskInstances = jbpmContext.getContext().getTaskMgmtSession().findPooledTaskInstances(actorID); after that it was easy to set the actorID for the instances, that's what i wanted to do. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972286#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...