Hi forum. I have already searched the forums and wiki and found that this might be class loader related. I just can seem to get it working. Here's the scene: I have a web app placed in a war file, say app-web.war I have a ejb app placed in a ejb jar file, say app-ejb.jar The whole thing is packed in an ear file, say app.ear All interfaces are local. I get the classcast exception during casting of the found home interface (via jndi) to the concrete home interface: In my web app servlet I do: MyHome home = (MyHome) ServiceLocator.GetHome(serviceId) In the ServiceLocator static class i perform the lookup in jndi: // Lookup is just fine Object ref = initial.lookup(getServiceName(serviceId)); // Cast to the common EJBHome interface return (EJBLocalHome) ref; Upon casting to MyHome interface in servlet I get the class cast exception. Can someone instruct me how to exactly pack my app-web.war, app-ejb.jar and the app.ear to overcome this issue? I built my ear and it's contents with an ANT script. Thanks in advance. Regards Henrik View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4025342#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...