JBoss classloading model is flat, this means that all apps in deploy dir can eventually 'see' each other. I think you don't need to put the same classes that are used in your common Spring module into each separate app (you just need them when compiling). Try w/o. But be sure Spring common module is deployed before the two other web apps. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4002320#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...