312             }
 313         }
 314         return tagset;
 315     }
 316 
 317     protected Set<String> createLanguageTagSet(String category) {
 318         String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString(category);
 319         Set<String> tagset = new HashSet<>();
 320         StringTokenizer tokens = new StringTokenizer(supportedLocaleString);
 321         while (tokens.hasMoreTokens()) {
 322             String token = tokens.nextToken();
 323             if (token.equals("|")) {
 324                 if (isNonUSLangSupported()) {
 325                     continue;
 326                 }
 327                 break;
 328             }
 329             tagset.add(token);
 330         }
 331 
 332         // ensure en-US is there (mandated by the spec, e.g. Collator.getAvailableLocales())
 333         tagset.add("en-US");
 334 
 335         return tagset;
 336     }
 337 
 338     /**
 339      * Lazy load available locales.
 340      */
 341     private static class AvailableJRELocales {
 342         private static final Locale[] localeList = createAvailableLocales();
 343         private AvailableJRELocales() {
 344         }
 345     }
 346 
 347     private static Locale[] createAvailableLocales() {
 348         /*
 349          * Gets the locale string list from LocaleDataMetaInfo class and then
 350          * contructs the Locale array and a set of language tags based on the
 351          * locale string returned above.
 352          */
 353         String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString("AvailableLocales");
 354 

 312             }
 313         }
 314         return tagset;
 315     }
 316 
 317     protected Set<String> createLanguageTagSet(String category) {
 318         String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString(category);
 319         Set<String> tagset = new HashSet<>();
 320         StringTokenizer tokens = new StringTokenizer(supportedLocaleString);
 321         while (tokens.hasMoreTokens()) {
 322             String token = tokens.nextToken();
 323             if (token.equals("|")) {
 324                 if (isNonUSLangSupported()) {
 325                     continue;
 326                 }
 327                 break;
 328             }
 329             tagset.add(token);
 330         }
 331 



 332         return tagset;
 333     }
 334 
 335     /**
 336      * Lazy load available locales.
 337      */
 338     private static class AvailableJRELocales {
 339         private static final Locale[] localeList = createAvailableLocales();
 340         private AvailableJRELocales() {
 341         }
 342     }
 343 
 344     private static Locale[] createAvailableLocales() {
 345         /*
 346          * Gets the locale string list from LocaleDataMetaInfo class and then
 347          * contructs the Locale array and a set of language tags based on the
 348          * locale string returned above.
 349          */
 350         String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString("AvailableLocales");
 351