I have tried this but then it no longer allows me to log in.. it tells me that the transaction failed. I get an error invoking the login method javax.faces.el.EvaluationException: Exception while invoking expression #{authenticator.authenticate} Caused by: javax.ejb.EJBTransactionRolledbackException: javax.persistance.PresistanceException: org.hibernate.type.SerializationException: could not deserialize Paula View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4089885#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...