Sorry for this post, i just found the solution : it was a dirty xmlns definition, due to ui inclusions and templates. Thx View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3985343#3985343 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3985343