ok, so that "cpu spike" is Eclipse WTP starting to throw exceptions all over the place - our patch avoids this. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4165798#4165798 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4165798