Just one question though, I'm trying to retrieve the connection String to the Database (aswell as user and password) used by Hibernate (and set in the persistence-xml) dynamically, so that I just have to change it there later on (since I'll use plain java to access my db with my resource bundle). How to do that? I've seen no methods to do that in the EntityManager. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4060307#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...