Hello, Can someone confirm the following... 1) Within an ear file with multiple jar files... a jar files' persistence.xml cannot reference another jar file as 4.0.5 does not fully implement the EJB3 spec. 2) So the entities must be individually referenced in each jar files' persistence.xml, and due to this be loaded by different class loaders. 3) As an end result, you cannot have an Extended Persistence Context across multiple jar files. Any assistence is appreciated, so please jump in with your own insight/experience! James View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4214934#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...