/** Execute the "removeCar" operation synchronously */
 public synchronized void removeCar(CarTypPrx car, UserTypPrx usr) {
   _queryController.destroy();
   DBProcedureController queryController;
   _queryController =
       queryController = new DBProcedureController(_handler, _session.getCardroidManager());
   queryController.removeCar(car, usr);
 }
 /**
  * Execute the "removeCar" operation asynchronously
  *
  * @param listener Implementation of the callback methods that will be called upon the completion
  *     of the operation
  * @return QueryController containing the context of this operation
  */
 public synchronized DBProcedureController removeCar(
     QueryListener listener, CarTypPrx car, UserTypPrx usr) {
   _queryController.destroy();
   DBProcedureController queryController;
   _queryController =
       queryController = new DBProcedureController(_handler, _session.getCardroidManager());
   queryController.removeCar(listener, car, usr);
   return queryController;
 }