*
     * @param crawlerConfig the OpenSearch crawler configuration
     */
    public FessUrlQueueService(final OpenSearchCrawlerConfig crawlerConfig) {
        super(crawlerConfig);
    }

    /**
     * Fetches URL queue list for the specified session with configurable ordering strategy.
     * Supports sequential (default) and random ordering based on crawling configuration.
     *
     * @param sessionId the crawling session identifier

            }
        }
    }

    /**
     * Polls the next URL queue entry for the specified session.
     * This method manages local caches and fetches from OpenSearch when needed.
     *
     * @param sessionId The session ID.
     * @return The next URL queue entry, or null if none available.
     */
    @Override

     */
    public StemmerOverrideService() {
        // Default constructor
    }

    /**
     * Retrieves a paginated list of stemmer override items from the specified dictionary.
     *
     * This method fetches stemmer override entries with pagination support, updating
     * the provided pager with the current page state and navigation information.
     *
     * @param dictId The ID of the stemmer override dictionary to query

        target.ensureOpen(); // handle present but invalid per isValid=false
        target.close();
        verify(fileHandle, atLeastOnce()).release();
    }

    @Test
    @DisplayName("getSessionKey fetches via tree->session and returns bytes")
    void testGetSessionKey() throws CIFSException {
        when(pipe.ensureTreeConnected()).thenReturn(tree);
        when(tree.acquire()).thenReturn(tree);

    /**
     * Checks if the enumeration is complete.
     *
     * @return true if enumeration is done, false otherwise
     */
    protected abstract boolean isDone();

    /**
     * Fetches more entries from the server.
     *
     * @return true if more entries were fetched, false otherwise
     * @throws CIFSException if an error occurs during fetching
     */

     */
    @Resource
    protected FessConfig fessConfig;

    /**
     * Retrieves a paginated list of character mapping items from the specified dictionary.
     * <p>
     * This method fetches character mapping items with pagination support and updates
     * the pager with the current page information including total count and page ranges.
     * </p>
     *

        if (logHelper != null) {
            logHelper.log(key, objs);
        }
    }

    /**
     * Runs the crawling process in a separate thread.
     * This method fetches URLs from the queue, accesses content, processes responses,
     * and extracts child URLs until the crawling process is done or no more URLs are available.
     */
    @Override
    public void run() {

                log(buf);
            }
        });
    }

    /**
     * Marks statistics tracking as complete for the specified crawler object.
     * Decrements the reference count and if it reaches zero, removes the
     * statistics object from cache and outputs the final statistics.
     *
     * @param keyObj the crawler object to complete tracking for
     */
    public void done(final Object keyObj) {

    private int[] context = new int[4];

    /**
     * Number of bytes processed so far mod. 2 power of 64.
     */
    private long count;

    /**
     * 512 bits input buffer = 16 x 32-bit words holds until reaches 512 bits.
     */
    private byte[] buffer = new byte[BLOCK_LENGTH];

    /**
     * 512 bits work buffer = 16 x 32-bit words
     */
    private final int[] X = new int[16];

    // Constructors

        verify(tree, times(1)).release();
    }

    @Test
    @DisplayName("release() decrements usage; closes only when count reaches zero")
    void release_decrementsAndClosesOnZero() throws CIFSException {
        when(cfg.isTraceResourceUsage()).thenReturn(false);
        stubValidTree(8L, true, true);