I installed JBoss AS 4.2.2 which contained the Hibernate version itsme listed. Still the same problem! Repeated column in mapping for entity: com.shockwatch.dbfacade.SWUnit column: hwModel (should be mapped with insert="false" update="false") I have other issues with a move to 4.2.2 since I am using Seam and 4.2.2 changed to Sun's JSF. That can be solved with some reconfiguration. This is bizarre. I think I am going to get the Hibernate source and run in debug and maybe mod it depending on what I find. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4121023#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...