private void validateDates(AcScheduledFlightUploadErrorVo e) {
   AcScheduledFlightUpload u = e.getScheduledFlightUpload();
   if (!u.hasStartLocalDt()) return;
   if (!u.hasEndLocalDt()) return;
   if (u.getStartLocalDt().isAfter(u.getEndLocalDt()))
     e.addError("Invalid Start/End date combination");
 }