Hibernate problemas com configuração

package com.util;

import java.lang.annotation.Annotation;

import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;

import com.domain.Cliente;

public class GeradorTabela {
	public static void main(String[] args) {
		AnnotationConfiguration configuration = new AnnotationConfiguration();
		configuration.addAnnotatedClass(Cliente.class);
		SchemaExport export = new SchemaExport(configuration);
		export.create(true, false);
	}
}

package com.domain;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
public class Cliente {
	@Id
	@GeneratedValue
	private int id;
	@Column(length = 40)
	private String nome;

	public Cliente() {

	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getNome() {
		return nome;
	}

	public void setNome(String nome) {
		this.nome = nome;
	}

}

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/Users/willian/workspace/ExemploHibernate/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/Users/willian/workspace/ExemploHibernate/lib/slf4j-simple-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
Failed to instantiate SLF4J LoggerFactory
Reported exception:
java.lang.NoClassDefFoundError: org/apache/log4j/Level
	at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)
	at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)
	at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:268)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:254)
	at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:197)
	at com.util.GeradorTabela.main(GeradorTabela.java:12)
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Level
	at java.net.URLClassLoader$1.run(Unknown Source)
	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)
	... 7 more
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/Level
	at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)
	at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)
	at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:268)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:254)
	at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:197)
	at com.util.GeradorTabela.main(GeradorTabela.java:12)
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Level
	at java.net.URLClassLoader$1.run(Unknown Source)
	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)

# Usando 2 appenders, 1 para logar no console, outro para um arquivo
log4j.rootCategory=DEBUG, stdout, fileOut

# Imprime somente mensagens com 'priority' WARN ou mais alto para o logger
#lembrando a ordem: DEBUG - INFO - WARN - ERROR - FATAL
log4j.category.SEU.LOGGER.NAME=WARN

# Explicita a herança do nivel de prioridade
#log4j.category.your.category.name=INHERITED

#### O primeiro appender escreve no console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

# Pattern que mostra o nome do arquivo e numero da linha.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n

#### O segundo appender escreve em um arquivo
log4j.appender.fileOut =org.apache.log4j.RollingFileAppender
log4j.appender.fileOut.File=example.log

# Controla o tamanho maximo do arquivo
log4j.appender.fileOut.MaxFileSize=100KB

# Faz backup dos arquivos de log (apenas 1)
log4j.appender.fileOut.MaxBackupIndex=1

log4j.appender.fileOut.layout=org.apache.log4j.PatternLayout
log4j.appender.fileOut.layout.ConversionPattern=%p %t %c - %m%n