anonymous wrote : Does anyone have experience with setting up Seam-managed persistence context set-up in Tomcat? Do you want to use embedded EJB or do you want a Hibernate session in a microcontainer. The later is described in the seam docu and there is the hibernate example in the seam distribution. The first is also described in the docu . Please take the time to set up an respective example and try to run it. This should solve your problem. If you have deeper understanding what is going on do not hesitate to ask again. anonymous wrote : Another question is what is the difference between | | @In(create=true) EntityManager bookingDatabase; | | and | | @PersistenceContext(unitName="booking") private EntityManager bookingDatabase; Look here: http://www.jboss.com/index.html?module=bb&op=viewtopic&t=70997 Ciao, Carsten View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3969518#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...