You should be able to have a single persistence.xml that references other jars in its <jar-file> elements. You can either put this persistence.xml in the META-INF directory of the ejb jar or a separate (library) jar' in the same ear file.
What error do you get?
thanks,
-marina
[Message sent by forum member 'mvatkina' (mvatkina)]
http://forums.java.net/jive/thread.jspa?messageID=280849