I have thought on initially creating a pool of ports, to eache endpoint I must use, and use these instances from pool, this way preventing concurrency, but I'm not sure if this is efficient, or even, really needed. I wanted to know prior to develop, because it`s a lot of work, since I have lots of clients, and different endpoints. Since my class is going to be invoked acting like a proxiing web service, I can't not guarantee there are not going to be concurrent invocations. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4180028#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...