Re:erro no hibernate

package br.com.teste.sistema.persistencia.dao;

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

public class HibernateSessionCreator {
    
    private static String CONFIG_FILE_LOCATION = "br/com/teste/sistema/hibernate.cfg.xml";
    
    //private static final Log log = Log.lookup(HibernateSessionCreator.class);
    
    private SessionFactory sessionFactory;
    
    public HibernateSessionCreator() {
        Configuration cfg = new Configuration();
        cfg.configure(CONFIG_FILE_LOCATION);
        sessionFactory = cfg.buildSessionFactory();
        
        if (sessionFactory == null){
            //log.error("Could not create SessionFactory" );
            throw new RuntimeException("Could not create SessionFactory");
        }
    }
    
    public Session createSession() {
        return sessionFactory.openSession();
    }
    
}