};

        assertEquals(Locale.ROOT, fessConfig.getQueryLocaleFromName(null));
        assertEquals(Locale.ROOT, fessConfig.getQueryLocaleFromName(""));
        assertEquals(Locale.ROOT, fessConfig.getQueryLocaleFromName("ja"));
        assertEquals(Locale.JAPANESE, fessConfig.getQueryLocaleFromName("test_ja"));
        assertEquals(Locale.CHINESE, fessConfig.getQueryLocaleFromName("test_zh"));

                }
                return language.toLowerCase(Locale.ROOT);
            }
            return null;
        }).toArray(n -> new String[n]));
    }

    default Locale getQueryLocaleFromName(final String name) {
        if (name == null) {
            return Locale.ROOT;
        }
        final String value = name.toLowerCase(Locale.ROOT);