assertEquals(1, events.size());
        assertEquals("listener1", events.get(0));

        // Switch to listener2
        factory.setOnDestroyListener(listener2);
        assertEquals(listener2, factory.getOnDestroyListener());
        factory.destroyObject(pooledObject);
        assertEquals(2, events.size());
        assertEquals("listener2", events.get(1));

        // Clear listener

import org.codelibs.fess.crawler.log.LogType;

/**
 * Implementation of the {@link LogHelper} interface.
 * This class provides methods for logging various events during the crawling process.
 * It uses Log4j2 for logging.
 *
 * <p>
 * The class contains methods for logging different types of events, such as:
 * </p>
 * <ul>
 *   <li>Starting and finishing threads</li>
 *   <li>Starting and cleaning up crawling</li>

 */
package org.codelibs.fess.crawler.log;

/**
 * LogType defines the different types of log messages that can be generated during the crawling process.
 * Each enum constant represents a specific event or state in the crawler's execution.
 */
public enum LogType {
    /** Indicates the start of a crawling process. */
    START_CRAWLING,
    /** Indicates the cleanup phase of crawling. */
    CLEANUP_CRAWLING,

import org.codelibs.core.timer.TimeoutTarget;

/**
 * HcConnectionMonitorTarget is responsible for monitoring and managing HTTP client connections.
 * It implements the TimeoutTarget interface to handle connection expiration events.
 *
 * <p>This class uses an instance of HttpClientConnectionManager to manage the connections.
 * It closes expired connections and idle connections that have exceeded a specified timeout.
 * </p>
 *

     */
    protected Client client;

    /**
     * The address of the OpenSearch instance.
     */
    protected String address;

    /**
     * List of listeners for connection events.
     */
    protected List<OnConnectListener> onConnectListenerList = new ArrayList<>();

    /**
     * Flag indicating whether the client is connected.
     */
    private volatile boolean connected;

        if (onDestroyListener != null) {
            onDestroyListener.onDestroy(p);
        }
    }

    /**
     * Listener interface for handling object destruction events.
     * @param <T> The type of the pooled object
     */
    public interface OnDestroyListener<T> {
        /**
         * Called when a pooled object is being destroyed.

     */
    public void setRequestListener(final RequestListener listener) {
        this.listener = listener;
    }

    /**
     * Interface for listening to request lifecycle events.
     */
    public interface RequestListener {

        /**
         * Called when a request starts.
         *
         * @param client the fault-tolerant client

  <mime-type type="audio/vnd.adobe.soundbooth">
    <glob pattern="*.asnd"/>
  </mime-type>
  <mime-type type="audio/vnd.celp"/>
  <mime-type type="audio/vnd.cisco.nse"/>
  <mime-type type="audio/vnd.cmles.radio-events"/>
  <mime-type type="audio/vnd.cns.anp1"/>
  <mime-type type="audio/vnd.cns.inf1"/>
  <mime-type type="audio/vnd.digital-winds">
    <glob pattern="*.eol"/>
  </mime-type>