Which version of JBoss are you interested in? I believe in JBoss-5 (which is in CR1 and not stable), because of the new VFS implementation, there's a way to specify a user-defined folder, containing class files, to be added to the classpath. There's a jboss-structure.xml which can be used to do this kind of stuff. I have not yet tried it. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4175833#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...