Hy, I am trying to access an EntityManager from JSP scriptlet for testing purposes and it doesn't work. Here is the JSP scriptlet: <% EntityManager em = (EntityManager) (new InitialContext()).lookup("java:comp/env/persistence/em"); Query query = em.createQuery("select u from USER u"); List users = (List) query.getResultList(); for (User user : users) { user.toString(); } %> persistence.xml file : ........ <persistence-unit name="myApp"> org.hibernate.ejb.HibernatePersistence <jta-data-source>java:/XAOracleDS</jta-data-source> </persistence-unit> ...... web.xml file : ....... <persistence-context-ref> <persistence-context-ref-name>persistence/em</persistence-context-ref-name> <persistence-unit-name>myApp</persistence-unit-name> </persistence-context-ref> ....... The application is deployed in JBoss 4.2.2.GA. When I access the JSP page I get the following exception: javax.servlet.ServletException: javax.naming.NameNotFoundException: persistence not bound I guess I have to configure the resource in jboss-web.xml too, but I don't know how. I tried with <resource-ref>, but I got the same error. Any help at all would be highly appreciated ! Thanks. Andrei View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4139854#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...