Problema ao alterar dataSource no JBoss

Assuntos Gerais
#1

Boa tarde!

Quando eu faço alguma alteração no meu dataSource.xml que fica na pasta deploy do JBoss 4.2… dá o seguinte erro quando eu tento fazer uma nova conexão no banco.

You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.; - nested throwable: (javax.resource.ResourceException: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.); nested exception is org.jboss.util.NestedSQLException: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.; - nested throwable: (javax.resource.ResourceException: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.)
org.jboss.util.NestedSQLException: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.; - nested throwable: (javax.resource.ResourceException: You are trying to use a connection factory that has been shut down: ManagedConnectionFactory is null.)
at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:79)
at org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:311)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:114)

Eu estou usando o Hibernate e uma classe chamada HibernateUtil:

package br.com.consist.hibernate.util;

import java.util.Properties;

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

public class HibernateUtil {

    private static final SessionFactory sessionFactory;
//    private static final SessionFactory logSessionFactory;
    
    static {
        
        try {
            //sessionFactory = new Configuration().configure().buildSessionFactory();
            sessionFactory = new AnnotationConfiguration().configure("/hibernate.cfg.xml").buildSessionFactory();
        } catch (Throwable e) {
            e.printStackTrace(System.out);
            throw new ExceptionInInitializerError(e);
        }

    }

    public static Session getSession() throws HibernateException {
        return sessionFactory.openSession();        
    }
    
//    public static Session getLogSession() throws HibernateException {
//        return logSessionFactory.openSession();
//    }
    
}

por favor alguém pode me explicar o que é isso e como faço para resolver?!!

obrigado!

#2

Estou tendo o mesmo problema. Alguém sabe a solução?

#3