"lynchie" wrote : According to the EJB3 spec jar-file defines an archive to scan for additional entities. You cannot specify a directory here. What a pity. I will have to add all classes explicit with element. Jar way is very inflexible and works good with ears/wars deployed on server. Worse with developer IDE. Maybe vfs will do good job (lately I tested doesnt works) Imho Ejb "next level" spec should provide user way to specify own entity scanner. Now is IoC epoch ;) Fortunately http://www.jboss.com/index.html?module=bb&op=viewtopic&t=139699 - customize name of persistence.xml - works ;) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4166448#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...