code: private void setWeekCountData(Locale desiredLocale)
      {
          /* try to get the Locale data from the cache */
          int[] data = cachedLocaleData.get(desiredLocale);
          if (data == null) {  /* cache miss */
              data = new int[2];
              // BEGIN Android-changed: Use ICU4C to get week data.
              // data[0] = CalendarDataUtility.retrieveFirstDayOfWeek(desiredLocale);
              // data[1] = CalendarDataUtility.retrieveMinimalDaysInFirstWeek(desiredLocale);
              LocaleData localeData = LocaleData.get(desiredLocale);
              data[0] = localeData.firstDayOfWeek.intValue();
              data[1] = localeData.minimalDaysInFirstWeek.intValue();
              // END Android-changed: Use ICU4C to get week data.
              cachedLocaleData.putIfAbsent(desiredLocale, data);
          }
          firstDayOfWeek = data[0];
          minimalDaysInFirstWeek = data[1];
      }
docs: Both firstDayOfWeek and minimalDaysInFirstWeek are locale-dependent.
  They are used to figure out the week count for a specific date for
  a given locale. These must be set when a Calendar is constructed.
  @param desiredLocale the given locale.