By the way, this is a question coming out of the many hours I wasted on the moronic screw up on our side. Would the jboss classes parsing the manifest files have logged anything useful if I turned on TRACE logging for the relevant packages? If so, at least I know that for next time, as I just thought of that now. If not, is it possible to either have it log problems with parsing the manifest file, or throw exceptions that tell me more about what the problem is rather than just: org.jboss.deployment.DeploymentException: No ClassLoaders found for ? Either of those would have saved me hours of debugging. Thanks, Joe View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124676#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...