I have been working through a JBoss (5.0.0.CR2) example using the tutorial at http://www.netbeans.org/kb/55/ejb30-jboss.html#Exercise_5 (however using Netbeans 6.5). I have an entity set up and upon deployment it is creating the table on the database. My problem is when I try to use a SLSB as a facade to retrieve entities back from the database. The generated code is as follows: | @Stateless | public class CustomerFacade implements CustomerFacadeLocal { | @PersistenceContext | private EntityManager em; | | public void create(Customer customer) { | em.persist(customer); | } | | public void edit(Customer customer) { | em.merge(customer); | } | | public void remove(Customer customer) { | em.remove(em.merge(customer)); | } | | public Customer find(Object id) { | return em.find(Customer.class, id); | } | | public List<Customer> findAll() { | return em.createQuery("select object(o) from Customer as o").getResultList(); | } | | } Unfortunately when I run this code, I get a NullPointerException upon usage of em because the PersistenceContext isn't being injected (I presume). This I'm sure is a config error, however I have also tried @PersistenceUnit(unitName = "PrototypeCRMSystem-ejbPU") | private EntityManagerFactory emf; | | private EntityManager em = emf.createEntityManager(); which gives the same problem when accessing emf. My persitence.xml is as follows: <?xml version="1.0" encoding="UTF-8"?> | <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"> | <persistence-unit name="PrototypeCRMSystem-ejbPU" transaction-type="JTA"> | <provider>org.hibernate.ejb.HibernatePersistence</provider> | <jta-data-source>java:/OracleDS</jta-data-source> | <properties> | <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9iDialect"/> | <property name="hibernate.hbm2ddl.auto" value="update"/> | <property name="hibernate.show_sql" value="true" /> | </properties> | </persistence-unit> | </persistence> | Am I missing something configuration-wise or is there a problem? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4199064#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...