1) You are outjecting your parent without an explicit scope, I can't remember the rules but I think an entity will default to event. 2) No, I would say that mixing and matching the two is not a good idea. I can't say for sure why your em isn't injecting properly, but play around with it. It does work and it seems like you've got the right idea. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3984196#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...