We have a cyclical dependency: AS uses JBM which depends on AS core libs. The best solution is to break this dependency, but until this is done, you should compile JBM against the latest AS libs. If you leave out snapshosts, the next best choice is the latest tagged release (AS5 CR2). The integration and TCK testing done on the AS side should uncover problems, if there are any. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4190481#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...