"jwenting" wrote : | In your hack you're actually creating 2 persistence units with the same name, each a part of its own enterprise application and existing only in that context. | | Nope. The piece of code that i modified just tries to resolve the relative URL. Without this code change earlier, the path was being resolved to anonymous wrote : java.lang.RuntimeException: error trying to scan <jar-file>: file:/D:/JBoss_4_2/server/default/deploy/EJB3Persistence.ear/myapp_ejb3.jar/myapp2_ejb3.jar The myapp2_ejb3.jar was being considered to be inside the myapp_ejb3.jar instead of EJB3Persistence.ear. After this code change the relative URL correctly resolves to anonymous wrote : file:/D:/JBoss_4_2/server/default/deploy/EJB3Persistence.ear/myapp2_ejb3.jar View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4140088#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...