Fixed. Added | | <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" /> | | to all persistence.xml View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4083810#4083810 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4083810