If i understand correctly, you want to avoid including jar files which include the javax.* classes in your classpath. Isn't it? anonymous wrote : What is (if any) the standard practice for such a case? (POJO Inheritance, XML descriptions, etc...) ? Its possible to use a orm.xml file to map the entities through xml instead of annotations. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4217397#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...