"chkiron" wrote : | | I had some troubles with this scenario before. Let's say appl A and appl B both use the same version of library X and are running in the production server. A project later and the library X's version in appl B is completely updated. In this case, I had several problems of class colision in the server and had to use the same X version in both applications. That's exactly what the classloader scoping (the links in my previous reply) will solve. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4241848#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...