Thanks. However I can not use DB. Idea is to ship these 3 modules to our customers, who will develop/package the final j2ee application. So the final j2ee application will have our modules as well as customer developed modules. This final application may or may not have DB and I don't want to make any assumptions. Is there any non-DB solution? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4088128#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...