I have done a more clear test. ext js 1.11 and ext js 2.2 run very well . View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4170706#4170706 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4170706