code: public static Set<Locale> getAvailableLocales() {
          Locale[] l = DecimalFormatSymbols.getAvailableLocales();
          return new HashSet<Locale>(Arrays.asList(l));
      }
docs: Lists all the locales that are supported.
  <p>
  The locale 'en_US' will always be present.
  
  @return an array of locales for which localization is supported