THe only thing I quickly saw was : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?nstan0_.ID_ as ID1_27_, task?nstan0_.NAME_ as NAME3_27_, task?nstan0_.DESCRIPTI' If you could post just the stacktrace and not the complete log from startup, it will probably be more readable View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960990#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...