What are you trying to achieve i.e. you will never ever be able to send 250'000 messages per second on any WS stack. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3971536#3971536 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3971536