// Test with various locale configurations
        Locale[] testLocales = { Locale.US, Locale.UK, Locale.CANADA, Locale.FRANCE, Locale.CHINA, Locale.KOREA, new Locale("es", "ES"),
                new Locale("pt", "BR") };

        for (Locale locale : testLocales) {
            OptionalThing<String> result = provider.determineAlias(locale);

        try {
            final String localeStr = locale.toString();
            return langItemsCache.get(localeStr);
        } catch (final ExecutionException e) {
            final List<Map<String, String>> langItems = new ArrayList<>(supportedLanguages.length);
            final String msg = ComponentUtil.getMessageManager().getMessage(locale, "labels.allLanguages");

            }
        };

        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"));

        // Execute
        OptionalThing<Locale> result = provider.findBusinessLocale(null, mockRequestManager);

        // Verify
        assertTrue(result.isPresent());
        Locale locale = result.get();
        assertEquals("no", locale.getLanguage());
        assertEquals("NO", locale.getCountry());
        assertEquals("NY", locale.getVariant());
    }

        int startPosition = 0;
        int pageSize = 10;
        int offset = 0;
        String[] extraQueries = new String[0];
        Map<String, Object> attributes = new HashMap<>();
        Locale locale = Locale.ENGLISH;
        SearchRequestType type = SearchRequestType.SEARCH;
        String similarDocHash = "";

        @Override
        public String getQuery() {
            return query;
        }

     *
     * @return the language instruction string, or empty string if locale is English
     */
    protected String getLanguageInstruction() {
        final Locale locale = getUserLocale();
        final String language = locale.getLanguage();
        if ("en".equals(language)) {
            return StringUtil.EMPTY;
        }

        if (labels != null && labels.length > 0) {
            // Validate against configured label types (union of request locale and ROOT for robustness)
            final Locale requestLocale = request.getLocale() != null ? request.getLocale() : Locale.ROOT;
            final Set<String> allowedLabels = new java.util.HashSet<>();
            ComponentUtil.getLabelTypeHelper()

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.chat;

import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.web.base.FessSearchAction;

    public void test_getForumLink() {
        getMockRequest().setLocale(Locale.ENGLISH);
        assertEquals("https://discuss.codelibs.org/c/FessEN/", systemHelper.getForumLink());
        getMockRequest().setLocale(Locale.JAPANESE);
        assertEquals("https://discuss.codelibs.org/c/FessJA/", systemHelper.getForumLink());
        getMockRequest().setLocale(Locale.ITALIAN);

            public void removeAttribute(String name) {
            }

            @Override
            public java.util.Locale getLocale() {
                return null;
            }

            @Override
            public java.util.Enumeration<java.util.Locale> getLocales() {
                return null;
            }

            @Override
            public boolean isSecure() {