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Asked: 2026-05-26T16:53:12+00:00

I am following this tutorial using eclipse EE : hibernate-tutorial-for-begin . There are the

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I am following this tutorial using eclipse EE : hibernate-tutorial-for-begin. There are the errors I am getting. One more thing is that I couldn’t find all mentioned jar files in any one hibernate distribution, so I have all jars from openlogic-hibernate-3.3.1.GA-all-bin-1 & lib/jpa from hibernate-release-4.0.0.CR5 bec it was not included in 3.3.1.
I made tables in MySql.

EDIT
Here is list of Jar files I am using:

lib\mysql-connector-java-5.1.18-bin.jar
lib\slf4j-simple-1.6.4.jar
lib\antlr-2.7.6.jar
lib\commons-collections-3.1.jar
lib\dom4j-1.6.1.jar
lib\hibernate3.jar
lib\hibernate-cglib-repack-2.1_3.jar
lib\hibernate-entitymanager-4.0.0.CR5.jar
lib\javassist-3.4.GA.jar
lib\jta-1.1.jar
lib\slf4j-api-1.5.2.jar

Here are the errors:

Exception in thread "main" java.lang.ExceptionInInitializerError
    at com.hib.HibernateUtil.buildSessionFactory(HibernateUtil.java:16)
    at com.hib.HibernateUtil.<clinit>(HibernateUtil.java:7)
    at com.hib.Test.addUser(Test.java:61)
    at com.hib.Test.main(Test.java:20)
Caused by: java.lang.IllegalAccessError: tried to access field org.slf4j.impl.StaticLoggerBinder.SINGLETON from class org.slf4j.LoggerFactory
    at org.slf4j.LoggerFactory.<clinit>(LoggerFactory.java:60)
    at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:151)
    at com.hib.HibernateUtil.buildSessionFactory(HibernateUtil.java:11)
    ... 3 more

Here are program files:

Test.Java

import java.util.Iterator;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.Transaction;

public class Test {

 /**
  * @param args
  */
 public static void main(String[] args) {

  Test tst = new Test();

  /**
   * adding records
   */
  tst.addUser("Saranga", "Rath");
  tst.addUser("Isuru", "Sampath");
  tst.addUser("Saranga", "Jaya");
  tst.addUser("Prasanna", "Milinda");

  tst.addTask(1, "Call", "Call Pubudu at 5 PM");
  tst.addTask(1, "Shopping", "Buy some foods for Kity");
  tst.addTask(2, "Email", "Send birthday wish to Pubudu");
  tst.addTask(2, "SMS", "Send message to Dad");
  tst.addTask(2, "Office", "Give a call to Boss");

  /**
   *  retrieving data
   */
  tst.getFullName("Saranga");

  /**
   * full updating records
   */
  User user = new User();
  user.setId(1);
  user.setFirstName("Saranga");
  user.setLastName("Rathnayake");
  tst.updateUser(user);

  /**
   * partial updating records
   */
  tst.updateLastName(3, "Jayamaha");

  /**
   * deleting records
   */
  User user1 = new User();
  user1.setId(4);
  tst.deleteUser(user1);
 }

 private void addUser(String firstName, String lastName) {

  Transaction trns = null;
  Session session = HibernateUtil.getSessionFactory().openSession();
  try {
   trns = session.beginTransaction();

   User user = new User();

   user.setFirstName(firstName);
   user.setLastName(lastName);

   session.save(user);

   session.getTransaction().commit();
  } catch (RuntimeException e) {
   if(trns != null){
    trns.rollback();
   }
   e.printStackTrace();
  } finally{
   session.flush();
   session.close();
  }
 }

 private void addTask(int userID, String title, String description) {

  Transaction trns = null;
  Session session = HibernateUtil.getSessionFactory().openSession();
  try {
   trns = session.beginTransaction();

   Task task = new Task();

   task.setUserID(userID);
   task.setTitle(title);
   task.setDescription(description);

   session.save(task);

   session.getTransaction().commit();
  } catch (RuntimeException e) {
   if(trns != null){
    trns.rollback();
   }
   e.printStackTrace();
  } finally{
   session.flush();
   session.close();
  }
 }

 private void updateLastName(int id, String lastName) {
  Transaction trns = null;
  Session session = HibernateUtil.getSessionFactory().openSession();
  try {
   trns = session.beginTransaction();
   String hqlUpdate = "update User u set u.lastName = :newLastName where u.id = :oldId";
   int updatedEntities = session.createQuery( hqlUpdate )
   .setString( "newLastName", lastName )
   .setInteger( "oldId", id )
   .executeUpdate();

   trns.commit();
  } catch (RuntimeException e) {
   if(trns != null){
    trns.rollback();
   }
   e.printStackTrace();
  } finally{
   session.flush();
   session.close();
  }

 }

 private void updateUser(User user) {
  Transaction trns = null;
  Session session = HibernateUtil.getSessionFactory().openSession();
  try {
   trns = session.beginTransaction();

   session.update(user);

   session.getTransaction().commit();
  } catch (RuntimeException e) {
   if(trns != null){
    trns.rollback();
   }
   e.printStackTrace();
  } finally{
   session.flush();
   session.close();
  }
 }

 private void getFullName(String firstName) {
  Transaction trns = null;
  Session session = HibernateUtil.getSessionFactory().openSession();
  try {
   trns = session.beginTransaction();
   List<User> users = session.createQuery("from User as u where u.firstName = :firstName")
   .setString( "firstName", firstName )
   .list();
   for (Iterator<User> iter = users.iterator(); iter.hasNext();) {
    User user = iter.next();
    System.out.println(user.getFirstName() +" " + user.getLastName());
   }
   trns.commit();
  } catch (RuntimeException e) {
   if(trns != null){
    trns.rollback();
   }
   e.printStackTrace();
  } finally{
   session.flush();
   session.close();
  }
 }

 private void deleteUser(User user) {
  Transaction trns = null;
  Session session = HibernateUtil.getSessionFactory().openSession();
  try {
   trns = session.beginTransaction();

   session.delete(user);

   session.getTransaction().commit();
  } catch (RuntimeException e) {
   if(trns != null){
    trns.rollback();
   }
   e.printStackTrace();
  } finally{
   session.flush();
   session.close();
  }
 }
}

HibernateUtil.java

package com.hib;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtil {
 private static final SessionFactory sessionFactory = buildSessionFactory();
 private static SessionFactory buildSessionFactory() {
  try {
   // Create the SessionFactory from hibernate.cfg.xml
   return new Configuration().configure().buildSessionFactory();
  }
  catch (Throwable ex) {
   // Make sure you log the exception, as it might be swallowed
   System.err.println("Initial SessionFactory creation failed." + ex);
   throw new ExceptionInInitializerError(ex);
  }
 }
 public static SessionFactory getSessionFactory() {
  return sessionFactory;
 }
}

hibernate.cfg.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
 <session-factory>
  <!-- Database connection settings -->
  <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
  <property name="connection.url">jdbc:mysql://localhost/userdata</property>
  <property name="connection.username">root</property>
  <property name="connection.password"></property>

  <!-- JDBC connection pool (use the built-in) -->
  <property name="connection.pool_size">1</property>

  <!-- SQL dialect -->
  <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

  <!-- Enable Hibernate's automatic session context management -->
  <property name="current_session_context_class">thread</property>

  <!-- Disable the second-level cache -->
  <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

  <!-- Echo all executed SQL to stdout -->
  <property name="show_sql">true</property>

  <!-- Drop and re-create the database schema on startup -->
  <property name="hbm2ddl.auto">update</property>

  <!-- Mapping files -->
  <mapping resource="user.hbm.xml"/>
  <mapping resource="task.hbm.xml"/>

 </session-factory>
</hibernate-configuration>

task.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
 <class name="com.hib.Task" table="tasks">
  <id name="id" type="int" column="id" >
   <generator class="native"/>
  </id>

  <property name="userID">
   <column name="user_id" />
  </property> 
  <property name="title">
   <column name="title" />
  </property>
  <property name="description">
   <column name="description"/>
  </property>
 </class>
</hibernate-mapping>

user.hbm.xml

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
 <class name="com.hib.User" table="users" >
  <id name="id" type="int" column="id" >
   <generator class="native"/>
  </id>

  <property name="firstName">
   <column name="first_name" />
  </property>
  <property name="lastName">
   <column name="last_name"/>
  </property>
 </class>
</hibernate-mapping>

Task Class

package com.hib;

public class Task {

 private Integer id;
 private Integer userID;
 private String title;
 private String description;

 public Integer getId() {
  return id;
 }
 public void setId(Integer id) {
  this.id = id;
 }
 public Integer getUserID() {
  return userID;
 }
 public void setUserID(Integer userID) {
  this.userID = userID;
 }
 public String getTitle() {
  return title;
 }
 public void setTitle(String title) {
  this.title = title;
 }
 public String getDescription() {
  return description;
 }
 public void setDescription(String description) {
  this.description = description;
 }
}

User Class

package com.hib;

public class User {
 private Integer id;
 private String firstName;
 private String lastName;

 public Integer getId() {
  return id;
 }
 public void setId(Integer id) {
  this.id = id;
 }
 public String getFirstName() {
  return firstName;
 }
 public void setFirstName(String firstName) {
  this.firstName = firstName;
 }
 public String getLastName() {
  return lastName;
 }
 public void setLastName(String lastName) {
  this.lastName = lastName;
 }
}
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1 Answer

  1. Editorial Team

    The runtime exception you’ve got is caused by slf4j (logging framework used by Hibernate). Make sure that you have provided the correct implementation that matches the slf4j API Hibernate was compiled with in your classpath, e.g. for Hibernate 3.3.1 (according to pom) the correct version is 1.5.2 (choose the target logging mechanism, e.g. simple/log4j/jdk14, according to your environment).

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