PersistenceContext is null after datasource hot deploy

[ryandavid]

Hello,

I am using some EJB3 session stateless bean with hibernate JPA integration on JBoss 5.1.0 GA.

The EJBs are packaged within a JAR (containing the persistence.xml and *.hbm.xml mapping files) and each EJB defines a Session object injected with @PersistenceContext annotation. All works fine.

The problem raises when I try to make a hot deploy of the datasource.

In this case I see that JBoss starts a new deployment of the datasource, of the persistence unit and the EJBs too but when I try to call an EJB I get a NullPointerException because the Session object wasn't injected.

This 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_2_0.xsd"

             version="2.0"> 

          <persistence-unit name="CFP-HibernateManager" transaction-type="JTA">

                         <description>Configurazione di JPA</description>   

            <jta-data-source>java:/jdbc/OracleCFP</jta-data-source>     

                <properties>

                  <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9Dialect"/>

            </properties>

          </persistence-unit> 

</persistence>

and the following is snipped code of an EJB

public class AnnoEJB extends CFPHibernateImpl implements AnnoRemote {

          @PersistenceContext(unitName="CFP-HibernateManager")

          private Session sx;

Any idea is appreciated.

Thanks a lot