Why do you need a message bean to process your message? If you need a way to invoke your webservice in an asynchronous way, take a look at this http://jbws.dyndns.org/mediawiki/index.php?title=User_Guide#Asynchronous_... and at the org.jboss.test.ws.jaxws.samples.asynchronous test cases you can find in the binaries. If you don't want to perform an asynch invocation but you need to use the message driven bean on the server side for other application specific reasons, consider synchronizing your foo method somewhow with the MDB. For example you could wait for responses on a temporary queue created by foo. When test mdb finish processing the message, it replies on that queue it found the reference in the request message from foo. Of course this is a pattern not directly related to the WS... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4106917#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...