Ron, Ah.. I see it. On the server side, the message was received, but the de-serialization of one of my incoming objects within the message failed. Hence, the server socket closes immediately and hence why I get the error that I do on the client side. This looks like its a problem on my end. In short, I need to make sure I send an object that is de-serializable on the server. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4269120#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...