This is completely insane. I'm reading Enterprise JavaBeans 3.0, by Bill Burke, and it has all these examples with collections mapping, but when I actually run this within JBoss, no matter what I do, JBoss simply won't use a proxy for the Collection. What is a good approach for looking into EJB's fetching mechanism to see why it is not fetching the Collection here? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3965648#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...