public List<ResourceDetail> getResourcesofReservation(String instanceId, String reservationId) {
   Connection con = initCon();
   try {
     return ResourcesManagerDAO.getResourcesofReservation(con, instanceId, reservationId);
   } catch (Exception e) {
     throw new ResourcesManagerRuntimeException(
         "ResourcesManagerBmEJB.getResourcesofReservation()",
         SilverpeasRuntimeException.ERROR,
         "resourcesManager.EX_GET_RESOURCES_RESERVATION",
         e);
   } finally {
     fermerCon(con);
   }
 }