Caused by: java.lang.NoClassDefFoundError: antlr/ANTLRException
   at org.hibernate.hql.ast.ASTQueryTranslatorFactory.createQueryTranslator(ASTQueryTranslatorFactory.java:27)
   at org.hibernate.impl.SessionFactoryImpl.createQueryTranslators(SessionFactoryImpl.java:357)
   at org.hibernate.impl.SessionFactoryImpl.getQuery(SessionFactoryImpl.java:423)
   at org.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:884)
   at org.hibernate.impl.SessionImpl.list(SessionImpl.java:834)
   at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
   at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:603)
   at fr.ggl.uc.admin.EssaiTypeUCEjbBean.testHib(EssaiTypeUCEjbBean.java:277)

public void testHib(UcRequest request) throws SibException {

    SessionFactory sessionFactory = HbnSession.getSessionFactory(HbnSession.CRISTAL);
    Session session = sessionFactory.openSession();
    Transaction tx = null;
    try {
      tx = session.beginTransaction();
     
      EssaiTypeDm dm = (EssaiTypeDm) session.get(EssaiTypeDm.class, new Long(2));
      assert dm.getColor() != null : "Attention la couleur ne doit pas être null";
      Color color = dm.getColor();
      // pas de pb, je continue.
     
      String hqlQuery = "SELECT COUNT (*) FROM essaitype";     
      Query query = session.createQuery(hqlQuery);
      //ET VOILA LA SOURCE D'ERREUR !!
      Integer integer = (Integer) query.uniqueResult();
     
      tx.commit();
    }
    catch (Exception e) {
      if (tx != null) tx.rollback();
      e.printStackTrace();
    }
    finally {
      session.close();
    }
  }