| <persistence:managed-persistence-context name="entityManager" | auto-create="true" | persistence-unit-jndi-name="java:/maxcontrolEntityManagerFactory" /> The persistence component is named 'entityManager' and you try to get it by the name 'myEntityManager'. | EntityManager entityManager = (EntityManager) Component.getInstance("myEntityManager"); | Try: | EntityManager entityManager = (EntityManager) Component.getInstance("entityManager"); | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4128456#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...