anonymous wrote : Can you just remove the one from war and see if you still get the same problem? But will the WAR run ? Becos the global spring lib (deployer) should be in the jboss 5 Class loader hierachy. Hmmm...But then how does this work for EAR ? I have the spring jar's in the <lib> directory in the EAR file. anonymous wrote : btw: what's the version of Spring lib in SpringDeployer and in your war? The same? Version of Spring lib in the Spring deployer is spring 2.0...I checkd this in the manifest file. Version in the WAR is spring 2.5. No they are not same... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4131897#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...