Hi, Thanks for the help. I did end up finding out yesterday that $JBOSS_HOME/server/default/log/server.log had more detailed debugging information, particularly a DEBUG level Hibernate log. I also found that the default configuration in $JBOSS_HOME/server/default/conf/log4j.xml was filtering these messages from the console and that this could be changed there. I also figured out my problem below - it was a table name clash that confused Hibernate. I had a many-to-many association between two entities that accidentally had the same name as another unrelated entity. Hibernate then would create a join table of the same name and get confused when making relationships. This is something to watch out for! -Leandro View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4063071#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...