return URL_QUEUE_SERVICE_THREAD_LOCAL.get();
    }

    /**
     * Sets the UrlQueueService instance to the thread-local variable.
     * If the provided UrlQueueService is null, it removes the current instance from the thread-local variable.
     *
     * @param urlQueueService the UrlQueueService instance to be set, or null to remove the current instance
     */

    }

    /**
     * Removes whitespace from the left side of the string.
     *
     * @param text
     *            The text to trim
     * @return The resulting string
     */
    public static final String ltrim(final String text) {
        return ltrim(text, null);
    }

    /**
     * Removes the specified characters from the left side of the string.
     *

    /**
     * Gets the logger instance for this transformer.
     *
     * @return the logger instance
     */
    Logger getLogger();

    /**
     * Extracts the host name from a URL string.
     * Removes protocol and path components to return just the hostname.
     *
     * @param u the URL string to extract host from
     * @return the host name, or empty string if URL is blank, or unknown hostname if parsing fails
     */

            final V value = e.value;
            removeList(entryIndexOf(e));
            e.clear();
            return value;
        }
        return null;
    }

    /**
     * Removes the entry at the specified index.
     *
     * @param index
     *            the index
     * @return the value of the entry at the specified index
     */
    public V removeAt(final int index) {

                pathMappingMap.put(sessionId, pathMappingList);
            } else {
                removePathMappingList(sessionId);
            }
        }
    }

    /**
     * Removes the path mapping list for a session.
     *
     * @param sessionId the session ID
     */
    public void removePathMappingList(final String sessionId) {
        pathMappingMap.remove(sessionId);
    }

import org.codelibs.fess.crawler.helper.impl.MimeTypeHelperImpl;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for archive extractor error handling improvements.
 * Tests partial extraction, error recovery, and improved error messages.
 */
public class ArchiveExtractorErrorHandlingTest extends PlainTestCase {
    private static final Logger logger = LogManager.getLogger(ArchiveExtractorErrorHandlingTest.class);

 *   <li>{@link #switchIndex()}: Switches the search alias to the current update index.</li>
 *   <li>{@link #removeDisableIndices()}: Removes disabled indices.</li>
 *   <li>{@link #indexer()}: Creates a new SuggestIndexer for indexing suggestions.</li>
 *   <li>{@link #builder()}: Creates a new SuggesterBuilder for building Suggester instances.</li>

            }
        }

        // Add last field
        fields.add(unquoteField(currentField.toString().trim()));

        return fields.toArray(new String[0]);
    }

    /**
     * Removes surrounding quotes from a field value.
     *
     * @param field the field value
     * @return the unquoted field value
     */
    protected String unquoteField(final String field) {

                        .replace("\'", "'")//
        );
    }

    /**
     * Strips invalid XML characters from the input string.
     *
     * This method removes characters that are not allowed in XML documents
     * according to the XML 1.0 specification. Valid characters include:
     * - Tab (0x9)
     * - Line feed (0xA)
     * - Carriage return (0xD)

    private static final String[] CAT_NAMES =
            { "aliases", "allocation", "count", "fielddata", "health", "indices", "master", "nodeattrs", "nodes", "pending_tasks",
                    "plugins", "recovery", "repositories", "thread_pool", "shards", "segments", "snapshots", "templates" };

    // ===================================================================================