ok, thank you. The transaction boundry was ok in my original code, but the first tip was the right one. But there is another question. What about relationships like this: | UserTransaction ut = sessionContext.getUserTransaction(); | ut.begin(); | MyEntity a = em.find(MyEntity.class, Long.valueOf(1)); | ut.commit(); | | ut = sessionContext.getUserTransaction(); | ut.begin(); | a.setName("FOO2"); | MyRelatedBean b = a.getMyRelatedBean(); | em.merge(a); | ut.commit(); | Of course, that ends with a LazyInitializeException. But can I 'integrate' a bean in the transaction to use it as normal accessed (via find or Query) bean? Greetings Klaus View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3986760#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...