public synchronized PagingList<CharMappingItem> selectList(final int offset, final int size) {
        if (mappingItemList == null) {
            reload(null);
        }

        if (offset >= mappingItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<CharMappingItem> emptyList(), offset, size, mappingItemList.size());
        }

        int toIndex = offset + size;

     */
    protected String formatDetails(final List<LogNotificationEvent> events, final int maxDetailsLength, final int maxDisplayEvents,
            final int maxMessageLength) {
        final int totalCount = events.size();
        final int displayCount = Math.min(totalCount, maxDisplayEvents);
        final StringBuilder sb = new StringBuilder();

                    FunctionalTestBucket(it).toBuildTypeBucket(model.subprojects)
                }

            // Sometimes people may add new subproject into `subprojects.json`
            // in this case we have no historical test running time, so we simply add these subprojects into first available bucket
            val allSubprojectsInBucketJson = buckets.flatMap { it.subprojects.map { it.name } }.toSet()

    protected int maxDeleteDocumentCacheSize;

    /** Maximum number of redirects to follow when processing URLs. */
    protected int maxRedirectCount;

    /** Executor service for concurrent processing of file operations. */
    private final ExecutorService executor;

    /** Timeout in seconds for executor service termination during shutdown. */
    private int executorTerminationTimeout = 300;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

/**
 * Helper for inter-instance coordination via OpenSearch.
 * Provides heartbeat registration, distributed operation locking, and event notification
 * to prevent concurrent execution of maintenance operations across multiple Fess instances.
 */

            long updateTime = systemHelper.getCurrentTimeAsLong();
            int errorCount = 0;
            int emptyListCount = 0;
            long cleanupTime = -1;
            while (!finishCrawling || !accessResultList.isEmpty()) {
                try {
                    final int sessionIdListSize = finishedSessionIdList.size();
                    intervalControlHelper.setCrawlerRunning(true);

    public ReleaseNotesTransformer(Reader original) {
        super(original);
        this.in = new Reader() {
            Reader delegate = null;

            @Override
            public int read(char[] cbuf, int off, int len) throws IOException {
                if (delegate == null) {
                    delegate = transform(original);
                }
                return delegate.read(cbuf, off, len);
            }

                normalized[i] = "0";
            }
        }

        // Find longest sequence of consecutive zeros
        int longestStart = -1;
        int longestLength = 0;
        int currentStart = -1;
        int currentLength = 0;

        for (int i = 0; i < 8; i++) {
            if ("0".equals(normalized[i])) {
                if (currentStart == -1) {
                    currentStart = i;

    protected static final String CRAWLER_CLIENTS = "crawlerClients";

    /** HTTP status code for Not Found */
    private static final int HTTP_STATUS_NOT_FOUND = 404;

    /** HTTP status code for OK */
    private static final int HTTP_STATUS_OK = 200;

    /**
     * Cache for client rules mapping client names to their corresponding URL patterns.

        // nothing
    }

    /**
     * Parses parameter string into a map.
     *
     * @param value the parameter string
     * @return the parameter map
     */
    public static Map<String, String> parse(final String value) {
        final Map<String, String> paramMap = new LinkedHashMap<>();
        if (value != null) {
            int unknownKey = 0;