assertFalse(labelTypeHelper.matchLocale(Locale.ENGLISH, Locale.JAPANESE));
        assertFalse(labelTypeHelper.matchLocale(Locale.SIMPLIFIED_CHINESE, Locale.TRADITIONAL_CHINESE));

        assertTrue(labelTypeHelper.matchLocale(null, Locale.ROOT));
        assertTrue(labelTypeHelper.matchLocale(Locale.ENGLISH, Locale.ROOT));
        assertTrue(labelTypeHelper.matchLocale(Locale.ROOT, Locale.ROOT));

     * ならデフォルトのロケールを返します。
     *
     * @param locale
     *            ロケール
     * @return {@literal locale}が{@literal null}でなければ{@literal locale}を、
     *         {@literal null}ならデフォルトのロケールを返します。
     */
    protected static Locale getLocale(final Locale locale) {
        if (locale != null) {
            return locale;
        }
        return LocaleUtil.getDefault();

     *
     * @param locale
     *            ロケール
     * @return 数値のセパレータ
     */
    public static String findDecimalSeparator(final Locale locale) {
        final DecimalFormatSymbols symbol = getDecimalFormatSymbols(locale);
        return Character.toString(symbol.getDecimalSeparator());
    }

    private static DecimalFormatSymbols getDecimalFormatSymbols(final Locale locale) {
        DecimalFormatSymbols symbol;

            if (typeof options.locale.daysOfWeek === 'object')
                this.locale.daysOfWeek = options.locale.daysOfWeek.slice();

            if (typeof options.locale.monthNames === 'object')
              this.locale.monthNames = options.locale.monthNames.slice();

            if (typeof options.locale.firstDay === 'number')
              this.locale.firstDay = options.locale.firstDay;

    /**
     * {@link DecimalFormatSymbols}を返します。
     *
     * @param locale
     *            ロケール。{@literal null}であってはいけません
     * @return {@link DecimalFormatSymbols}
     */
    public static DecimalFormatSymbols getDecimalFormatSymbols(final Locale locale) {
        assertArgumentNotNull("locale", locale);

        DecimalFormatSymbols symbols = CACHE.get(locale);
        if (symbols == null) {

        asDocMeta().version(version);
    }

    public Locale getLocale() {
        if (locale == null) {
            if (getValue() == null) {
                return Locale.ROOT;
            }
            locale = ComponentUtil.getFessConfig().getQueryLocaleFromName(getValue());
        }
        return locale;
    }

    @Override
    public String toString() {

        assertEquals(getTestDfsTargetServer().toLowerCase(Locale.ROOT), ref.getServer().toLowerCase(Locale.ROOT));
        assertEquals(dfsTestSharePath.length() - 1, ref.getPathConsumed());

        DfsReferralData ref2 = doResolve(dfsTestSharePath, "", true, true);

        assertNotNull(ref2);
        assertEquals(getTestDfsTargetServer().toLowerCase(Locale.ROOT), ref2.getServer().toLowerCase(Locale.ROOT));

 */

package gradlebuild.basics

import java.util.Locale

fun String.toLowerCase(): String =
    lowercase(Locale.US)

fun String.toUpperCase(): String =
    uppercase(Locale.US)

fun String.capitalize(): String =
    replaceFirstChar { it.uppercase(Locale.US) }

fun String.decapitalize(): String =

    }
  }

  private fun <T> withLocale(
    locale: Locale,
    block: () -> T,
  ): T {
    val previous = Locale.getDefault()
    try {
      Locale.setDefault(locale)
      return block()
    } finally {
      Locale.setDefault(previous)
    }
  }

  @Test fun testIllegalCharsetName() {
    val mediaType = parse("text/plain; charset=\"!@#$%^&*()\"")

        Locale locale = LocaleUtil.getDefault();
        if (localeStr != null) {
            final int index = localeStr.indexOf('_');
            if (index < 0) {
                locale = new Locale(localeStr);
            } else {
                final String language = localeStr.substring(0, index);
                final String country = localeStr.substring(index + 1);
                locale = new Locale(language, country);
            }