I'm surprised it works in your unit test and not with a webservice. You most likely do two different things then. From the words and some of your code I still see/read nothing that makes it impossible. Probably something to do with transaction demarcation so in the unittest case the instance is save to the database and in the other it isn't. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4242231#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...