Issues

During the work on the project today I met an issue that I couldn't solve yet: integration of Hibernate and EJB3. It is giving exceptions (Like, "Exception while invoking class org.glassfish.ejb.startup.EjbDeployer load method") and others, that are barely Googlable - they address to forum topics, where people raise the same questions but don't get any valid answers. 

• Could anybody recommend a tutorial  on Glassfish + EjB3 + Hibernate combination? I would be grateful for any help.

I managed to find material on Hibernate with EjB and JBoss - there it is different and could be easier, but switching technologies doesn't seem like a good idea to me, since there is so little time left. 

I found a good tutorial on Hibernate: http://netbeans.org/kb/docs/web/hibernate-webapp.html

Instead of required EjB3 and Servlets it uses JSF and xhtml, but the overall architecture is correct and persistence tier is as it is supposed to be.