i solve the issue by downgrading postgres from 8.4 to 8.3 Not sure why postgres cause it. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4245158#4245158 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4245158