Hello, in this topic http://www.jboss.com/index.html?module=bb&op=viewtopic&t=98478 the question of what is the proper (specification compliant) way to check if an entity has been persisted was raised. And here http://opensource.atlassian.com/projects/hibernate/browse/HHH-2439 is stated that anonymous wrote : checking non-null identifier value being available on an entity instance if its in persistent state is at least anonymous wrote : relying on questionable behavior but I didn't see any alternative approach suggested, so I'm asking for the safe way to verify persistent state of an entity. regards View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4114022#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...