import sun.util.locale.provider.LocaleDataMetaInfo; //导入依赖的package包/类
public CLDRLocaleProviderAdapter() {
    LocaleDataMetaInfo nbmi = null;

    try {
        nbmi = AccessController.doPrivileged(new PrivilegedExceptionAction<LocaleDataMetaInfo>() {
            @Override
            public LocaleDataMetaInfo run() {
                for (LocaleDataMetaInfo ldmi : ServiceLoader.loadInstalled(LocaleDataMetaInfo.class)) {
                    if (ldmi.getType() == LocaleProviderAdapter.Type.CLDR) {
                        return ldmi;
                    }
                }
                return null;
            }
        });
    }  catch (Exception e) {
        // Catch any exception, and continue as if only CLDR's base locales exist.
    }

    nonBaseMetaInfo = nbmi;
}
 

import sun.util.locale.provider.LocaleDataMetaInfo; //导入依赖的package包/类
@Override
 public List<Locale> getCandidateLocales(String baseName, Locale locale) {
    List<Locale> candidates = super.getCandidateLocales(baseName, locale);
    /* Get the locale string list from LocaleDataMetaInfo class. */
    String localeString = LocaleDataMetaInfo.getSupportedLocaleString(baseName);

    if (localeString != null && localeString.length() != 0) {
        for (Iterator<Locale> l = candidates.iterator(); l.hasNext();) {
            Locale loc = l.next();
            String lstr;
            if (loc.getScript().length() > 0) {
                lstr = loc.toLanguageTag().replace('-', '_');
            } else {
                lstr = loc.toString();
                int idx = lstr.indexOf("_#");
                if (idx >= 0) {
                    lstr = lstr.substring(0, idx);
                }
            }
            /* Every locale string in the locale string list returned from
             the above getSupportedLocaleString is enclosed
             within two white spaces so that we could check some locale
             such as "en".
             */
            if (lstr.length() != 0 && localeString.indexOf(" " + lstr + " ") == -1) {
                l.remove();
            }
        }
    }
    // Force fallback to Locale.ENGLISH for CLDR time zone names support
    if (locale.getLanguage() != "en"
            && baseName.contains(CLDR) && baseName.endsWith("TimeZoneNames")) {
        candidates.add(candidates.size() - 1, Locale.ENGLISH);
    }
    return candidates;
}