final StringBuilder sb = new StringBuilder(100);
            final List<String> fields = new ArrayList<>();
            final List<String> tags = new ArrayList<>();
            final List<String> roles = new ArrayList<>();

            for (final Pair<String, String> searchFieldLog : searchLog.getSearchFieldLogList()) {
                final String name = searchFieldLog.getFirst();
                if (contentFieldNameSet.contains(name)) {

        // Test with source offset + length exceeding source array bounds
        byte[] data = { 0x01, 0x02 };
        // This constructor call itself should not throw an error, as it's just storing the values.
        // The error should occur when System.arraycopy is called.
        ByteEncodable encodable = new ByteEncodable(data, 1, 2); // off=1, len=2, data.length=2. 1+2 > 2

        byte[] dest = new byte[5];

    protected long cacheExpireAfterWrite = 10 * 60 * 1000L;

    /** Cache for storing statistics objects keyed by crawler object identifiers. */
    protected LoadingCache<String, StatsObject> statsCache;

    /**
     * Initializes the crawler statistics helper.
     * Sets up the statistics logger and creates the cache for storing
     * statistics objects with the configured size and expiration settings.
     */

        return getStopwordsFile(dictId).map(file -> file.get(id).get());
    }

    /**
     * Stores a stopword item in the specified dictionary.
     *
     * @param dictId        The ID of the dictionary.
     * @param stopwordsItem The stopword item to store.
     */
    public void store(final String dictId, final StopwordsItem stopwordsItem) {

    public OptionalEntity<SynonymItem> getSynonymItem(final String dictId, final long id) {
        return getSynonymFile(dictId).map(file -> file.get(id).get());
    }

    /**
     * Stores a synonym item in the specified dictionary.
     *
     * @param dictId      The ID of the dictionary.
     * @param synonymItem The synonym item to store.
     */
    public void store(final String dictId, final SynonymItem synonymItem) {

     * @param defaultValue the default value to return if key is not found or value is null
     * @return the parameter value as a String, or defaultValue if not found
     */
    public String getAsString(final String key, final String defaultValue) {
        final String value = getAsString(key);
        if (value != null) {
            return value;
        }
        return defaultValue;
    }

    /**

     * @return an OptionalThing containing the pipeline string if found, or empty if not found or blank
     */
    public OptionalThing<String> getPipeline(final String configId) {
        final CrawlingConfig config = getCrawlingConfig(configId);
        if (config == null) {
            return OptionalThing.empty();
        }
        final String pipeline = config.getConfigParameterMap(ConfigName.CONFIG).get(Config.PIPELINE);

    public static final int MAX_BUFFER_SIZE = 1000;

    /** List storing recent lines from the input stream */
    private final List<String> list = new LinkedList<>();

    /** Maximum number of lines to keep in the buffer */
    private final int bufferSize;

    /** Callback function to process each line as it's read */
    private final Consumer<String> outputCallback;

    /**
     * Creates a new input stream thread.

 * <p>
 * Unlike a cache, this session data is not subject to purging. For this same reason, session data should also not be
 * abused as a cache (i.e. for storing values that can be re-calculated) to avoid memory exhaustion.
 * <p>
 * <strong>Note:</strong> Actual implementations must be thread-safe.
 *
 * @see Session#getData()
 * @since 4.0.0
 */
@Experimental
@ThreadSafe
@Provider
public interface SessionData {

     * @return list of popular words matching the criteria
     */
    public List<String> getWordList(final SearchRequestType searchRequestType, final String seed, final String[] tags, final String[] roles,
            final String[] fields, final String[] excludes) {
        final String baseSeed = seed != null ? seed : fessConfig.getSuggestPopularWordSeed();
        final String[] baseTags = tags != null ? tags : fessConfig.getSuggestPopularWordTagsAsArray();