Thank you very much, that worked wonderful. Unfortunately I ran into another problem. I have two EJBs and two facelets. Both EJBs have a collection (named inventoryObjects) which are annoted as DataModels (@DataModel). Both EJBs are Stateful with a SESSION scope. When I now open a facelet which works with the mentioned collection and then switch to the other facelet, I get a LazyInitializationException. This makes sense to me, because I have already a inventoryObjects collection instantiated and filled with some data from the database. How can I now avoid (beside rename all fields to different names) this problem? thanks for your help thierry View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4053616#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...