I tried to recreate your issue but if I attempt this, Hibernate throws a anonymous wrote : org.hibernate.StaleStateException : Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1 I'm glad you raised this though as I'll make sure I handle this error. Not sure why it's not generating this for you though? How do you do your delete? Something like this?myList.remove(selectedObject); | entityManager.remove(selectedObject) Cheers, Damian. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4113359#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...