I must admire your chutzpah coming on to the JBoss message boards asking how to port your EJB3 application to Glassfish. In any case, I would start by getting your application to work on JSE, then port it to Glassfish. You can read information on Hibernate's website on this. Then, add the appropriate cache provider configuration information for TreeCache. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4106159#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...