}

            @Override
            public String getIndexFieldSegment() {
                return "segment";
            }

            @Override
            public String get(String key) {
                // Return empty string instead of null
                return "";
            }
        };

        ComponentUtil.setFessConfig(fessConfig);

        // Initialize QueryFieldConfig

    protected FessConfig.SimpleImpl createBaseFessConfig() {
        return new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String get(String key) {
                // Override to return empty string instead of null to avoid NullPointerException
                return "";
            }

            @Override
            public String getIndexFieldTitle() {

            result.setCrawlingInfoId(DfTypeUtil.toString(source.get("crawlingInfoId")));
            result.setCreatedTime(DfTypeUtil.toLong(source.get("createdTime")));
            result.setKey(DfTypeUtil.toString(source.get("key")));
            result.setValue(DfTypeUtil.toString(source.get("value")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {

    }

    /**
     * Puts a key-value pair to the environment.
     *
     * @param env The environment.
     * @param key The key.
     * @param value The value.
     */
    protected void putEnv(final Hashtable<String, String> env, final String key, final String value) {
        if (value == null) {
            throw new LdapConfigurationException(key + " is null.");
        }
        env.put(key, value);

            }
        }
    }

    /**
     * Adds a password validation error message to the messages object based on the error key.
     *
     * @param messages the FessMessages object to add the error to
     * @param errorKey the error key identifying the type of password validation error
     */
    protected void addPasswordValidationError(final FessMessages messages, final String errorKey) {

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o propertiesHtmlMap: (NotRequired - Default map:{})
    #  You can set PropertiesHtml settings.
    #  Elements of this map are as below:
    #   o key of map: Properties Title Name
    #   o baseDir: base directory for directory property. (NotRequired)
    #   o rootFile: root file to read properties (Required)

            inver = InvertibleCryptographer.createBlowfishCipher(fessConfig.getAppCipherKey());
        } else if ("des".equalsIgnoreCase(cipherAlgorithm)) {
            logger.warn("DES cipher is deprecated due to its 56-bit key size vulnerability. Please consider migrating to AES. algorithm={}",
                    cipherAlgorithm);
            inver = InvertibleCryptographer.createDesCipher(fessConfig.getAppCipherKey());

    }

    @Test
    public void test_getType_immutability() {
        // Test that getType returns the same value consistently
        String type = "ApiKey";
        String message = "API key expired";
        InvalidAccessTokenException exception = new InvalidAccessTokenException(type, message);

        String firstCall = exception.getType();
        String secondCall = exception.getType();

import java.util.ArrayList;
import java.util.Collection;

import org.codelibs.fess.opensearch.log.allcommon.EsAbstractConditionQuery;
import org.codelibs.fess.opensearch.log.cbean.cq.FavoriteLogCQ;
import org.dbflute.cbean.ckey.ConditionKey;
import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.CommonTermsQueryBuilder;
import org.opensearch.index.query.ExistsQueryBuilder;
import org.opensearch.index.query.IdsQueryBuilder;

    }

    @Test
    public void test_exceptionWithSpecialCharactersInMessage() {
        // Test with special characters in message
        int statusCode = 400;
        String message = "Error: \"Invalid JSON\" - {key: 'value'} \n\t@#$%^&*()";

        WebApiException exception = new WebApiException(statusCode, message);

        assertEquals(statusCode, exception.getStatusCode());
        assertEquals(message, exception.getMessage());