The remoting invocation handler is the only place where the correct class loader is known. The response object it returns is the only thing that can hold the class loader unless the handler itself is queried for this info. It could be hidden in an marshaller associated with the reply so its not an explicit part of the api, but having a marshaller being capable of knowing a handler specific class loader is what would be needed. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4169191#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...