CreateEntityManagerFactory throws NullPointerException for ejb3 jse client

Question

This question has been posted to the Toplink/jpa forum without any reply.
Dear experts!
I am trying to create a java standard edition client, to test outside the weblogic server, my ejb 3 entities, declared as shown in the following persistence.xml.
The java code follows also. I have read about some relevant bugs in eclipselink back in 2006, or 7 or 8 and mostly unanswered threads :
CreateEntityManagerFactory null pointer exception and
Returned null to createEntityManagerFactory about tomcat and oc4j.
Persistence.createEntityManagerFactory() throw NullPointerException in oc4j
I am using JDeveloper 11g Studio Edition Version 11.1.1.3.0, Build JDEVADF_11.1.1.3.PS2_GENERIC_100408.2356.5660.
Any helping hand available?
Thank you very much in advance!
NA
package chapter12javaseclient;
import actionbazaar.buslogic.BidException;
import actionbazaar.persistence.Bid;
import actionbazaar.persistence.Bidder;
import actionbazaar.persistence.Item;
import java.util.HashMap;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.eclipse.persistence.config.EntityManagerProperties;
public class PlaceBidBeanJavaSE {
private static EntityManagerFactory emf;
private static EntityManager em;
public static void main(String[] args) {
String userId= "idiot";
Long itemId = new Long (1);
Double bidPrice = 2001.50;
try {
if (emf == null){
emf = Persistence.createEntityManagerFactory("actionBazaar");
System.out.println("EntityManagerFactory created!");
getEntityManager();
System.out.println("EntityManager created!");
addBid(userId,itemId,bidPrice);
commitTransaction();
} finally {
// close the EntityManager when done
em.close();
emf.close();
private static void getEntityManager() {
HashMap emProps = new HashMap();
emProps.put(EntityManagerProperties.JDBC_USER, "ab");
emProps.put(EntityManagerProperties.JDBC_PASSWORD, "ab");
System.out.println("Creating entity manager");
em = emf.createEntityManager(emProps);
em.getTransaction().begin();
private static void commitTransaction() {
em.getTransaction().commit();
private static Long addBid(String userId, Long itemId, Double bidPrice) throws BidException {
Item item = em.find(Item.class,itemId);
if (item == null)
throw new BidException("Invalid Item Id");
Bidder bidder = em.find(Bidder.class,userId);
if (bidder == null)
throw new BidException("Invalid Bidder Id");
Bid bid = new Bid();
bid.setItem(item);
bid.setBidBidder(bidder);
bid.setBidPrice(bidPrice);
em.persist(bid);
return bid.getBidId();
<?xml version="1.0" encoding="UTF-8" ?>
<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="actionBazaar" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>actionbazaar.persistence.Bid</class>
<class>actionbazaar.persistence.Item</class>
<class>actionbazaar.persistence.User</class>
<class>actionbazaar.persistence.Bidder</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="eclipselink.target-server" value="WebLogic_10"/>
<property name="eclipselink.target-database" value="Oracle11"/>
<property name="javax.persistence.jdbc.driver"
value="oracle.jdbc.OracleDriver"/>
<property name="javax.persistence.jdbc.password"
value="ab"/>
<property name="javax.persistence.jdbc.url"
value="jdbc:oracle:thin:@hera:1521:orcl"/>
<property name="javax.persistence.jdbc.user" value="ab"/>
<property name="eclipselink.logging.level" value="ALL"/>
</properties>
</persistence-unit>
</persistence>

Answer 1

A solution might be found here:
Re: createEntityManagerFactory() throws NullPointerException for ejb jse client
Re: createEntityManagerFactory() throws NullPointerException for ejb jse client
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