Hello pkovgan, i found out your thread. Im facing the same problem (Null pointer Exception after invoking an Axis-WS) The Link to my Thread: http://www.jboss.org/index.html?module=bb&op=viewtopic&t=96554. I think the problem is that we run Axis under Jboss. I don't know but it's certain that the Service endpoint implementation generated by the wstool are not compatible with the ws4ee-specification. But i'm also sure someone has already got and lose this problem. May any one know to solve this. Let me know to pkovgan if you have a solution. I'm still investigate. Thanks Bertrand View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991430#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...