@Override
                    public List<Map<String, String>> load(final String key) throws Exception {
                        final ULocale uLocale = new ULocale(key);
                        final Locale displayLocale = uLocale.toLocale();
                        final List<Map<String, String>> langItems = new ArrayList<>(supportedLanguages.length);

    /**
     * Retrieves the current user's locale from the request manager.
     *
     * @return the user's locale, or Locale.ROOT if not available
     */
    private static Locale getUserLocale() {
        final Locale locale = ComponentUtil.getRequestManager().getUserLocale();
        if (locale == null) {
            return Locale.ROOT;
        }
        return locale;
    }

    /**

# Access: http://localhost:8080/admin/?browser_lang=sv
```

## Troubleshooting

### Language doesn't appear in dropdown

- Verify both `fess_label_[locale].properties` and `fess_message_[locale].properties` exist
- Check that locale code is in `supported.languages` in `fess_config.properties`
- Regenerate Java classes: `mvn dbflute:freegen`
- Rebuild project: `mvn clean package`
- Restart Fess application

            final String language = locale.getLanguage();
            final String country = locale.getCountry();
            if (StringUtil.isNotBlank(language)) {
                if (StringUtil.isNotBlank(country)) {
                    return language.toLowerCase(Locale.ROOT) + "-" + country.toLowerCase(Locale.ROOT);
                }

        /**
         * Returns the locale.
         *
         * @return The locale.
         */
        public Locale getLocale() {
            return locale;
        }

        /**
         * Sets the locale.
         *
         * @param locale The locale.
         */
        public void setLocale(final Locale locale) {
            this.locale = locale;
        }
    }

    /**

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.settings;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import org.codelibs.fess.suggest.settings.SuggestSettings.TimeoutSettings;
import org.opensearch.transport.client.Client;

/**
 * Builder class for constructing SuggestSettings instances.

            } catch (final Exception e) {
                logger.debug("Failed to parse locale: name={}", name, e);
            }
        }
        return OptionalObject.empty();
    }

    @Override
    public OptionalThing<Locale> getRequestedLocale(final RequestManager requestManager) {
        return OptionalObject.empty(); // means browser default
    }

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.helper;

import java.util.Collections;
import java.util.HashMap;
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.core.lang.StringUtil;
import org.codelibs.fess.opensearch.config.exbhv.RelatedQueryBhv;

        }
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded ScriptEngine: {}", name);
        }
        scriptEngineMap.put(name.toLowerCase(Locale.ROOT), scriptEngine);
        scriptEngineMap.put(scriptEngine.getClass().getSimpleName().toLowerCase(Locale.ROOT), scriptEngine);
    }

    /**
     * Gets a script engine.
     * @param name The name of the script engine.
     * @return The script engine.
     */

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

import java.util.Locale;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.mylasta.direction.FessConfig;