Probleme hibernate Failed to load class "org.slf4j.impl.StaticLoggerBinder".

voci mes pojo

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public class Course implements java.io.Serializable {
 
	private int courseId;
	private String courseName;
 
	public Course() {
	}
 
	public Course(int courseId, String courseName) {
		this.courseId = courseId;
		this.courseName = courseName;
	}
 
	public int getCourseId() {
		return this.courseId;
	}
 
	public void setCourseId(int courseId) {
		this.courseId = courseId;
	}
 
	public String getCourseName() {
		return this.courseName;
	}
 
	public void setCourseName(String courseName) {
		this.courseName = courseName;
	}
 
}

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public class User implements java.io.Serializable {
 
	private Integer idUser;
	private String loginUser;
	private String passwordUser;
 
	public User() {
	}
 
	public User(String loginUser, String passwordUser) {
		this.loginUser = loginUser;
		this.passwordUser = passwordUser;
	}
 
	public Integer getIdUser() {
		return this.idUser;
	}
 
	public void setIdUser(Integer idUser) {
		this.idUser = idUser;
	}
 
	public String getLoginUser() {
		return this.loginUser;
	}
 
	public void setLoginUser(String loginUser) {
		this.loginUser = loginUser;
	}
 
	public String getPasswordUser() {
		return this.passwordUser;
	}
 
	public void setPasswordUser(String passwordUser) {
		this.passwordUser = passwordUser;
	}
 
}

hibernate.cfg.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
		"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
		"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.password">L099339R</property>
        <property name="hibernate.connection.url">jdbc:mysql://local:3306/mabasse</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    </session-factory>
</hibernate-configuration>

course.hbm.xml

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<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 8 mars 2010 13:59:55 by Hibernate Tools 3.2.4.GA -->
<hibernate-mapping>
    <class name="Course" table="course" catalog="mabasse">
        <id name="courseId" type="int">
            <column name="courseId" />
            <generator class="assigned" />
        </id>
        <property name="courseName" type="string">
            <column name="courseName" length="20" not-null="true" />
        </property>
    </class>
</hibernate-mapping>

course.hbm.xml

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<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 8 mars 2010 13:59:55 by Hibernate Tools 3.2.4.GA -->
<hibernate-mapping>
    <class name="User" table="user" catalog="mabasse">
        <id name="idUser" type="java.lang.Integer">
            <column name="id_user" />
            <generator class="identity" />
        </id>
        <property name="loginUser" type="string">
            <column name="login_user" length="25" not-null="true" />
        </property>
        <property name="passwordUser" type="string">
            <column name="password_user" length="25" not-null="true" />
        </property>
    </class>
</hibernate-mapping>

Le Main

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mport java.util.List;
import java.util.Iterator;
 
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
 
import hibernate.HibernateUtil;
import pojo.*;
 
public class Main {
 
	public static void main(String[] args) {
		Main obj = new Main();
		Long courseId1 = obj.saveCourse("Physics");
		Long courseId2 = obj.saveCourse("Chemistry");
		Long courseId3 = obj.saveCourse("Maths");
		obj.listCourse();
		obj.updateCourse(courseId3, "Mathematics");
		obj.deleteCourse(courseId2);
		obj.listCourse();
	}
 
	public Long saveCourse(String courseName)
	{
		Session session = HibernateUtil.getSessionFactory().openSession();
		Transaction transaction = null;
		Long courseId = null;
		try {
			transaction = session.beginTransaction();
			Course course = new Course();
			course.setCourseName(courseName);
			courseId = (Long) session.save(course);
			transaction.commit();
		} catch (HibernateException e) {
			transaction.rollback();
			e.printStackTrace();
		} finally {
			session.close();
		}
		return courseId;
	}
 
	public void listCourse()
	{
		Session session = HibernateUtil.getSessionFactory().openSession();
		Transaction transaction = null;
		try {
			transaction = session.beginTransaction();
			List courses = session.createQuery("from Course").list();
			for (Iterator iterator = courses.iterator(); iterator.hasNext();)
			{
				Course course = (Course) iterator.next();
				System.out.println(course.getCourseName());
			}
			transaction.commit();
		} catch (HibernateException e) {
			transaction.rollback();
			e.printStackTrace();
		} finally {
			session.close();
		}
	}
 
	public void updateCourse(Long courseId, String courseName)
	{
		Session session = HibernateUtil.getSessionFactory().openSession();
		Transaction transaction = null;
		try {
			transaction = session.beginTransaction();
			Course course = (Course) session.get(Course.class, courseId);
			course.setCourseName(courseName);
			transaction.commit();
		} catch (HibernateException e) {
			transaction.rollback();
			e.printStackTrace();
		} finally {
			session.close();
		}
	}
 
	public void deleteCourse(Long courseId)
	{
		Session session = HibernateUtil.getSessionFactory().openSession();
		Transaction transaction = null;
		try {
			transaction = session.beginTransaction();
			Course course = (Course) session.get(Course.class, courseId);
			session.delete(course);
			transaction.commit();
		} catch (HibernateException e) {
			transaction.rollback();
			e.printStackTrace();
		} finally {
			session.close();
		}
	}
}

l'erreure afficher:

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SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Initial SessionFactory creation failed.java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder
Exception in thread "main" java.lang.ExceptionInInitializerError
	at hibernate.HibernateUtil.<clinit>(HibernateUtil.java:15)
	at principale.Main.saveCourse(Main.java:28)
	at principale.Main.main(Main.java:17)
Caused by: java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder
	at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:223)
	at org.slf4j.LoggerFactory.bind(LoggerFactory.java:120)
	at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)
	at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:269)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:242)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:255)
	at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:152)
	at hibernate.HibernateUtil.<clinit>(HibernateUtil.java:11)
	... 2 more
Caused by: java.lang.ClassNotFoundException: org.slf4j.impl.StaticLoggerBinder
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	... 10 more

Merci pour toute aide