Estou tentando usar o Hibernate no Netbeans 6.5
Porém o programa retorna a segunte mensagem quando rodado:
init:
deps-module-jar:
deps-ear-jar:
deps-jar:
compile-single:
run-main:
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
java.lang.NullPointerException
at org.hibernate.cfg.Configuration.configure(Configuration.java:1441)
at modelo.HibernateUtility.(HibernateUtility.java:21)
at modelo.Teste.main(Teste.java:28)
Exception in thread “main” java.lang.NullPointerException
at modelo.HibernateUtility.getSession(HibernateUtility.java:33)
at modelo.Teste.main(Teste.java:28)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
Esse é meu HibernateUtility:
package modelo;
import java.net.URL;
import javax.persistence.Entity;
import javax.persistence.EntityManager;
import org.apache.catalina.Manager;
import org.apache.jasper.tagplugins.jstl.core.Url;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtility {
private static SessionFactory factory;
static {
try {
URL url= Manager.class.getResource(“hibernate-config.xml”);
factory = new Configuration().configure().buildSessionFactory();
} catch (Exception e) {
e.printStackTrace();
factory = null;
}
}
public static Session getSession() {
return factory.openSession();
}
}
Essa minha classe de teste:
/*
- To change this template, choose Tools | Templates
- and open the template in the editor.
*/
package modelo;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import org.hibernate.Session;
/**
*
-
@author rafaelbraga
*/
public class Teste {
public static void main(String Args[]) throws RollbackException{Session sessao = HibernateUtility.getSession(); Transaction transaction = (Transaction) sessao.beginTransaction(); Alunos alunos = new Alunos(); alunos.setCpf("11111"); alunos.setNome("11111"); sessao.save(alunos); try { transaction.commit(); } catch (HeuristicMixedException ex) { Logger.getLogger(Teste.class.getName()).log(Level.SEVERE, null, ex); } catch (HeuristicRollbackException ex) { Logger.getLogger(Teste.class.getName()).log(Level.SEVERE, null, ex); } catch (SecurityException ex) { Logger.getLogger(Teste.class.getName()).log(Level.SEVERE, null, ex); } catch (IllegalStateException ex) { Logger.getLogger(Teste.class.getName()).log(Level.SEVERE, null, ex); } catch (SystemException ex) { Logger.getLogger(Teste.class.getName()).log(Level.SEVERE, null, ex); } sessao.close();}
}
Obrigado desde já 
