[NewBie] Not able to connect JPA and Hibernate ?

Question

Hi,
In last few days I have read some tutorial and started doing JPA and Hibernate tutorials. But I am not able to make it work. Can some one please point out what is that I am doing wrong? Here are the details of what I am doing
I am using
IDE : Eclipse EE Indigo
Following jars
antlr-2.7.6.jar
commons-collections-3.2.jar
dom4j-1.6.1.jar
hibernate-annotations-3.4.0.GA.jar
hibernate-commons-annotations-3.1.0.GA.jar
hibernate-entitymanager-3.4.0.GA.jar
hibernate-jpa-2.0-api.jar
hibernate3-3.3.2.GA.jar
javaee-api-5.0-3.jar
javassist-3.9.0.GA.jar
junit-4.8.2.jar
log4j-1.2.12.jar
slf4j-api-1.6.1.jar
slf4j-simple-1.6.1.jar
sqljdbc.jar => For connecting to MS SQL Server database
junit-4.8.2 => For testing the application
The target runtime is set as JBoss 5.0 with jars of JBoss 6.0
Here is my persistence.xml. This file is under "src\META-INF"
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" 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_2_0.xsd">
     <persistence-unit name="JH1" transaction-type="RESOURCE_LOCAL">
          <provider>org.hibernate.ejb.HibernatePersistence</provider>
          <class>entity.Users</class>
          <exclude-unlisted-classes>false</exclude-unlisted-classes>
          <properties>
               <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/>
               <property name="hibernate.show_sql" value="true"/>
               <property name="javax.persistence.jdbc.url" value="jdbc:sqlserver://localhost:1433;databaseName=TempEPMUser"/>
               <property name="javax.persistence.jdbc.user" value="user"/>
               <property name="javax.persistence.jdbc.password" value="password"/>
               <property name="javax.persistence.jdbc.driver" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
               <property name="javax.persistence.transactionType" value="RESOURCE_LOCAL"/>
          </properties>
     </persistence-unit>
</persistence>
Here is the Users.java code. This is the entity class created using the context menu item JPA Entities from tables
package entity;
import java.io.Serializable;
import javax.persistence.*;
import java.sql.Timestamp;
import java.math.BigDecimal;
* The persistent class for the Users database table.
@Entity
public class Users implements Serializable { 
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="Usr_UserID")
private long usr_UserID;
@Column(name="Usr_DeptId")
private BigDecimal usr_DeptId;
public Users() { 
public long getUsr_UserID() { 
return this.usr_UserID;
public void setUsr_UserID(long usr_UserID) { 
this.usr_UserID = usr_UserID;
Here is the testing code TestUser.java
package testentity;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import javax.persistence.PersistenceException;
import org.apache.log4j.BasicConfigurator;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import entity.Users;
public class TestUser {
     private EntityManagerFactory emf;
     private EntityManager em;
     @Before
     public void initEmfAndEm(){
          BasicConfigurator.configure();
          try {
               emf = Persistence.createEntityManagerFactory("JH1");
          } catch (PersistenceException pe) {
               System.out.println(pe.getMessage());
          em = emf.createEntityManager();
     @After
     public void cleanup() {
          em.close();
     @Test
     public void emptyTest() {
          EntityTransaction et = em.getTransaction();
          et.begin();
          @SuppressWarnings("unchecked")
          final List<Users> listUser = em.createQuery("select usr_DeptID from Users").getResultList();
          et.commit();
          for (Users usr: listUser){
               int depid = usr.getUsr_DeptId().intValue();
               System.out.println("User Department id is "+depid);
When I execute the code I get following error message
java.lang.UnsupportedOperationException: The user must supply a JDBC connection
at org.hibernate.connection.UserSuppliedConnectionProvider.getConnection(UserSuppliedConnectionProvider.java:54)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:85)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354)
at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:38)
at testentity.TestUser.emptyTest(TestUser.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

Answer 1

Hi,
Try following the JPA tutorials for WebLogic, JPA using EclipseLink or Hibernate will be the same if you stick to the specification. WebLogic 10.3.4.0 ships with a Java EE 6 compliant JPA 2.0 implementation in EclipseLink - you may want to give that a try.
http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebLogic_Web_Tutorial
http://wiki.eclipse.org/EclipseLink/Examples/Distributed
I also have a JBoss 6 tutorial for getting JPA working as well.
BTW, your persistence unit is currently application managed - try switching to container managed - then most of your jar dependencies will go away as everything is already setup for you to do dependency injection via the container.
http://wiki.eclipse.org/EclipseLink/Examples/JPA/JBoss_Web_Tutorial
thank you
Michael O'Brien
http://www.eclipselink.org