Many thanks, Jaikiran! I still remember you helping me out with my EJB3 JPA app the last time. BTW what IDE do you use ? You have not used Eclipse before ? How do you do your Java/JEE programming then ? Actually looking at the many forum replies I have received from the JBoss and Hibernate sites, many of the posters do recommend copying files to the JBoss server libraries - for example, if there is a later version or for ClassNotFound exceptions. Is there anyone with Eclipse experience who can help me out ? Many thks in advance! View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4228809#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...