pbl Jboss Tools Strust hibernate connection imposible

voici hibernateUtil

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import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
 
public class HibernateUtil {
 
    private static final SessionFactory sessionFactory = buildSessionFactory();
 
    private static SessionFactory buildSessionFactory() {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            return new Configuration().configure().buildSessionFactory();
        }
        catch (Throwable ex) {
            // Make sure you log the exception, as it might be swallowed
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }
 
    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }
 
}

voici la classe Action

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package Action;
 
import java.util.List;
 
import metier.*;
 
import beans.ClientForm;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
 
 
public class Inscription extends org.apache.struts.action.Action {
 
 
 
 
    public Inscription() {
    }
 
    public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
        ClientForm monClient = (ClientForm) form;
 
        Session session = HibernateUtil.getSessionFactory().openSession();
 
		Transaction tx = session.beginTransaction();
 
		Query query = session.createQuery("from Client where login='"+monClient.getLogin()+"'");
 
		List<Client> list = query.list();
 
		tx.commit();
		session.close();
 
		if (list != null) {mapping.findForward("loginExistant");}
		else {
 
			Session session2 = HibernateUtil.getSessionFactory().openSession();
 
			Transaction tx2 = session.beginTransaction();	
 
		Client client = new Client();
 
 
		Query query2 = session.createSQLQuery("Select max(idclient) from Client");
		List<Integer> list2 = query2.list();
 
			tx2.commit();
			session2.close();
 
			Session session3 = HibernateUtil.getSessionFactory().openSession();
 
			Transaction tx3 = session.beginTransaction();	
 
 
		client.setConfirme(0);
		client.setEmail(monClient.getEmail());
		client.setIdClient(list2.get(0)+1);
		client.setLogin(monClient.getLogin());
		client.setPassword(monClient.getMdp());
		client.setPasswordConfirme(monClient.getMdpc());
 
		session3.saveOrUpdate(client);
		session3.flush();
		tx3.commit();
		session3.close();
 
		Mail mail = new Mail();
		try {mail.envoiMail(monClient.getEmail());}
		catch (Exception e) {mapping.findForward("erreureEmail");}
 
		mapping.findForward("bienvenue");
 
		}
 
		return null;
    }
 
}

voici les erreures

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exception 
 
javax.servlet.ServletException: org.hibernate.exception.JDBCConnectionException: Cannot open connection
cause mï¿½re 
org.hibernate.exception.JDBCConnectionException: Cannot open connection
java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/mabasse

or il y a bien je suppose conection puisqu'il y a creation de la classe hibernate Client sérialized.