docs: private String utilDateToStr(Date pdt, String pstrFmt)
      {
          String strRet = null;
          SimpleDateFormat dtFmt = null;
  
          try
          {
              dtFmt = new SimpleDateFormat(pstrFmt);
              strRet = dtFmt.format(pdt);
          }
          catch (Exception e)
          {
              strRet = null;
          }
          finally
          {
              if (dtFmt != null) dtFmt = null;
          }
          return strRet;
      }