here are how I define the EM: | @PersistenceContext(unitName="globalEM") | private transient EntityManager em; | here is xml | <persistence> | <persistence-unit name="globalEM"> | <provider>org.hibernate.ejb.HibernatePersistence</provider> | <jta-data-source>java:/DefaultDS</jta-data-source> | <properties> | <property name="hibernate.hbm2ddl.auto" value="validate"/> | <property name="hibernate.show_sql" value="true"/> | <!-- These are the default for JBoss EJB3, but not for HEM: --> | <property name="hibernate.cache.provider_class" value="org.hibernate.cache.HashtableCacheProvider"/> | <property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup"/> | <property name="jboss.entity.manager.factory.jndi.name" value="java:/selectItemsEntityManagerFactory"/> | <property name="jboss.entity.manager.jndi.name" value="java:/selectItemsEntityManager"/> | </properties> | </persistence-unit> | </persistence> I am getting null pointer exception while using em.find(...) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3967480#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...