You were right, spring-2.0.7.jar was not referenced in application.xml. Now it is and I don't have this ClassNotFoundException. I keep getting strange Spring internal errors like "LangNamespaceHandler does not implement NamespaceHandler interface" even though it does. But I think this is a different story. Thanks for your help. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4115879#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...