sorry for answering late: as far as I know there's no way to access treecache through the hibernate entitymanager. Maybe with a JNDI lookup you can get the underlaying MBean. But there's a solution: cast the entitymanager to hibernate session and something like this: anonymous wrote : | org.jboss.ejb3.entity.HibernateSession hs = (HibernateSession) entityManager; | org.hibernate.Session session = hs.getHibernateSession(); | session.flush(); | session.getSessionFactory().evict(result.getClass(), result.getUid()); | lazlo View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3977705#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...