The line | <property name="hibernate.hbm2ddl.auto" value="validate"/> | is not the problem. It's just the tool which tells you that you have a problem with the column type of column id: | Wrong column type: id, expected: varchar(32) | Here the issue may be with the MySql dialect. I had the same type of error with bit type and Hsqldb dialect. Check hibernate forum. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4098050#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...