assertNull(exception.getCause());
    }

    /**
     * Test protected constructor with suppression and stack trace control
     */
    public void test_protectedConstructor_withSuppressionAndStackTrace() throws Exception {
        // Access protected constructor via reflection
        Constructor<CrawlerSystemException> constructor =

    protected int preloadSize = 512;

    /**
     * Creates a new SitemapsHelper instance.
     */
    public SitemapsHelper() {
        // Default constructor
    }

    /**
     * Checks if the given input stream contains valid sitemap data.
     * @param in the input stream to validate
     * @return true if the stream contains valid sitemap data, false otherwise

         */
        private final Detector detector; // always set in the constructor

        /**
         * Creates an auto-detecting parser instance using the default Tika
         * configuration.
         */
        public TikaDetectParser() {
            this(tikaConfig);
        }

        /**
         * Constructor.
         * @param config Tika config.
         */

 * </p>
 */
public class Handler extends URLStreamHandler {

    /**
     * Constructs a new Handler.
     */
    public Handler() {
        // Default constructor
    }

    /**
     * Opens a connection to the storage URL.
     *
     * @param u The URL to open a connection to
     * @return A new StorageURLConnection instance

    private final List<String> sitemapList = new ArrayList<>();

    /**
     * Creates a new RobotsTxt instance.
     */
    public RobotsTxt() {
        // Default constructor
    }

    /**
     * Checks if access to a given path is allowed for a specific user agent according to robots.txt rules.
     *
     * @param path The path to check for access permission

    /** Flag to track initialization status */
    protected AtomicBoolean isInit = new AtomicBoolean(false);

    /**
     * Constructs a new FileSystemClient.
     */
    public FileSystemClient() {
        // Default constructor
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.client.CrawlerClient#doGet(java.lang.String)
     */
    @Override

    /** Properties used for mail processing */
    protected Properties mailProperties = new Properties();

    /**
     * Constructs a new EmlExtractor.
     */
    public EmlExtractor() {
        // Default constructor
    }

    /* (non-Javadoc)
     * @see org.codelibs.robot.extractor.Extractor#getText(java.io.InputStream, java.util.Map)
     */
    @Override

    protected int[] successfulHttpCodes;

    /** HTTP status codes considered not modified */
    protected int[] notModifiedHttpCodes;

    /**
     * Constructs a new DefaultResponseProcessor.
     */
    public DefaultResponseProcessor() {
        // Default constructor
    }

    /**
     * Processes response data based on HTTP status code and configured transformer.
     *

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(FileTransformer.class);

    /**
     * Constructs a new FileTransformer.
     */
    public FileTransformer() {
        // Default constructor
    }

    /**
     * A path to store downloaded files. The default path is a current
     * directory.
     */
    protected String path;

    /**

        /**
         * Array of space characters. Default includes common space characters.
         */
        private int[] spaceChars = { '\u0020', '\u00a0', '\u3000', '\ufffd' };

        /**
         * Constructor.
         * @param reader The reader.
         */
        public TextNormalizeContext(final Reader reader) {
            this.reader = reader;
        }

        /**