JBoss Community

Hi all,

I am migrating jboss4.2.3 -> jboss7 and I am totally blocked by the probleme that @PersistenceContext  always returns me NULL in the EJB jars.

Here are the projects in my deployment :

deployment

-----------------------------

  - hibernate-ejb-1.jar

     | - src/main/java ... some entities and DAO

    | - src/main/resources

              | - META-INF

                    | - hibernate.cfg.xml

                    | - persistence.xml

- seam2App.ear

     | - module1.jar

    | - module2.jar

     | - war1.war

     hibernate-ejb-1.jar offers some DAO functions for my seam2App.ear and other applications. However, in hibernate-ejb-1.jar, all the @PersistenceContext  EntityManager returns NULL.

Here is the persistence.xml

<persistence 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"

          version="1.0">

               <persistence-unit name="xxx-unit" transaction-type="JTA">

        <provider>org.hibernate.ejb.HibernatePersistence</provider>

                         <jta-data-source>java:/xxxxxDS</jta-data-source>

                         <properties>

                     <property name="hibernate.ejb.cfgfile" value="/META-INF/hibernate.cfg.xml"/>

                    <property name="jboss.entity.manager.factory.jndi.name" value="java:jboss/EntityManagerFactories/xxx"/>

                    <property name="hibernate.session_factory_name" value="java:jboss/hibernate/SessionFactoryxxx"/>

                    <property name="jboss.as.jpa.providerModule" value="org.hibernate:3" />

         </properties>

          </persistence-unit>

</persistence>

In the cosole, I have

12:15:49,752 INFO  [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-2) JNDI bindings for session bean named xxxDAOImpl in deployment unit deployment "xxxxxxx-SNAPSHOT.jar" are as follows:

        java:global/xxxxxx-SNAPSHOT/xxxxxxDAOImpl!com.xxxx.dao.common.remotexxxxxxDAORemote

        java:app/xxxxxx-SNAPSHOT/xxxxxxDAOImpl!com.xxxxxx.dao.common.remote.xxxxxxDAORemote

        java:module/xxxxxxDAOImpl!com.xxxxxx.dao.common.remote.xxxxxxDAORemote

        java:jboss/exported/xxxxxx-SNAPSHOT/xxxxxxDAOImpl!com.xxxxxx.dao.common.remote.xxxxxxDAORemote

        java:global/xxxxxx-SNAPSHOT/xxxxxxDAOImpl!com.xxxxxx.dao.common.local.xxxxxxDAOLocal

        java:app/xxxxxx-SNAPSHOT/xxxxxxDAOImpl!com.xxxxxx.dao.common.local.xxxxxxDAOLocal

        java:module/xxxxxxDAOImpl!com.xxxxxx.dao.common.local.xxxxxxDAOLocal

In other applications who depend on hibernate-ejb-1.jar, I tried to get the Ejb like this:

     context = new InitialContext();

     DAO dao=  (DAO ) context. lookup("java:global/xxxxxx-SNAPSHOT/xxxxxxDAOImpl!com.xxxxxx.dao.common.local.xxxxxxDAOLocal");

DAO.java looks like this

@Stateless

public class DAOImpl implements DAOLocal, DAORemote{

    @PersistenceContext

    private EntityManager entityManager;

          public List<Bean> findAll() {

                    Query query = createNamedQuery(Bean.FIND_ALL);

                    if(query!=null)

                              return query.getResultList();

                    return null;

          }

}

However, I have the NPE because @PersistenceContext  EntityManager entityManager  is always null.

The probleme is :