That's why i change 'nul' to 'null' i can start the server.Actually,I change 'nul' to another symbol,I can start Jboss. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4111430#4111430 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4111430