try this: | | if(!entityManager.contains(exam)) | entityManager.merge(exam) | | HTH. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4079219#4079219 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4079219