"bill.burke(a)jboss.com" wrote : Instead of having a metadata bridge between these two projects, why not just merge the metamodels? And have both containers use the same classes? If this is an option, I do suggest a new package name so that if Carlo and company need to backmerge something, they won't conflict with JBoss 4.2. You mean EJB2 and EJB3 use the same metadata classes? That's the goal, AFAIK. At least in JBoss5. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4063200#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...