Hello, I have a web application (deployed as a .war) and some common classes, which I would like to deploy separately - as a jar. But this does not work - and I suppose ClassLoaders are an issue, or rather my lack of understanding them. However, it's quite weird. If I deploy only the .war, then when I try to access some "common" classes I get a ClassNotFoundException. If I deploy both the .war and the .jar, then I get a NoClassDefFoundError Why is that? How can I achieve my goal? Thanks, Adam View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3959901#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...