You mean server2server on the same server or different servers? If it's on the same server you will probably pass it by reference, so.. no serialization. And.. if you correctly implement the protocol, would it matter if it's server2server communication? I mean.. it won't be easy, as you will probably have to replace the client object by a server object on the server.. so you will have to test it well, but I think this could be done. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4091532#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...