assertEquals("1", LocaleUtil.getDefault(), LocaleUtil.getLocale(null));
        assertEquals("2", Locale.JAPANESE, LocaleUtil.getLocale("ja"));
        assertEquals("3", Locale.JAPAN, LocaleUtil.getLocale("ja_JP"));
    }

        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "ja-JP";
        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "ja_JP";
        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "ja_JP_AAA";
        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "zh";
        assertEquals("zh", systemHelper.normalizeLang(value));

        assertArrays(new String[] { "ja" }, fessConfig.normalizeQueryLanguages(new String[] { "ja-jp" }));
        assertArrays(new String[] { "ja" }, fessConfig.normalizeQueryLanguages(new String[] { "ja_JP" }));
        assertArrays(new String[] { "ja", "zh-cn" }, fessConfig.normalizeQueryLanguages(new String[] { "ja", "zh" }));