How can i use Hibernate 3.2 as my ejb3 persistence manager

I get issues when i try to use Hibernate 3.2 as my ejb3 persistence manager in OC4J 10.1.3. I have included a persistence.xml file in META-INF/ of my ejb-jar.
My classes are well annotated and would otherwise work with toplink, however i need to use hibernate.
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="default" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>appsconnDS</jta-data-source>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9Dialect"/>
</properties>
</persistence-unit>
</persistence>
I get the following error when i deploy the jar.
06/08/13 14:06:28 WARNING: DeployerRunnable.run java.lang.InstantiationException
: Error initializing ejb-modules: nulloracle.oc4j.admin.internal.DeployerExcepti
on: java.lang.InstantiationException: Error initializing ejb-modules: null
at oracle.oc4j.admin.internal.DeployerBase.execute(DeployerBase.java:126
at oracle.oc4j.admin.jmx.server.mbeans.deploy.OC4JDeployerRunnable.doRun
(OC4JDeployerRunnable.java:52)
... 4 more
Caused by: java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:396)
at com.evermind.server.ejb.persistence.PersistenceUnitInfoImpl.addProper
ty(PersistenceUnitInfoImpl.java:346)
at com.evermind.server.ejb.persistence.PersistenceUnitInfoXMLFactory.par
seProperties(PersistenceUnitInfoXMLFactory.java:126)
2006-08-13 14:06:28.984 WARNING java.lang.InstantiationException: Error initiali
zing ejb-modules: null

Hi. I am also experiencing the same error as you are and would be interested in knowing how you solved it. thanks in advance

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