* @return CalendarDate
   */
  public static CalendarDate fileWriteDate(String filename) {
    { String truefile = Stella.translateLogicalPathname(filename);

      if (!(Native.nativeProbeFileP(truefile))) {
        Stella.ensureFileExists(filename, "file-write-date");
      }
      return (Native.nativeFileWriteDate(truefile));
    }
  }