I resolve the porblem with graphSession.saveProcessInstance(pi); by remplacing by jbpmContext.save(pi);. but the processinstance don't appear on my console as I haven't any processinstance. SO I have try to use is empty methode and I have this answer: is "true". but I have create a process instance just before... what I missed? this is my code: | GraphSession graphSession = jbpmSession.getGraphSession(); | TaskMgmtSession taskMgmtSession = jbpmSession.getTaskMgmtSession(); | jbpmSession.beginTransaction(); | | | System.out.println("creation d'une instance de process"); | pi = new ProcessInstance(pd); | System.out.println("enregistrement du processinstance"); | jbpmContext.save(pi); | System.out.println("PROCESS INSTANCE ID:"+ pi.getId()); | jbpmContext.loadProcessInstanceForUpdate(pi.getId()); | | jbpmContext.save(pi); | //UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUu | Collection processinstances=graphSession.findProcessInstances(pd.getId()); | System.out.println("empty:" +processinstances.isEmpty()); | Iterator itpro = processinstances.iterator(); | while(itpro.hasNext()){ | ProcessInstance processinstance =(ProcessInstance) itpro.next(); | | System.out.println("les elements de la collection de process sont : "+processinstance.getId()); | } | | //uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu | If you see what I missed or have a solution to my probelm thank you to help me please antitrust1982 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972608#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...