"ezanih" wrote : BTW what IDE do you use ? You have not used Eclipse before ? How do you do your Java/JEE programming then ? | I do use Eclipse, but just as a plain code editor. I don't use it (or any other plugins) for packaging the application or deploying to the server :) I use Ant (or other build tools) to do the packaging stuff. "ezanih" wrote : | 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. | That's an easy way out, but is risky since you are changing the jar versions on which the server was tested and shipped. And if other applications on the same server rely on the previous versions, then there's no way those applications will work. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4228844#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...