* and supports destruction listeners.</p>
 *
 * @param <T> the type of the pooled object
 */
public class CrawlerPooledObjectFactory<T> extends BasePooledObjectFactory<T> {
    private static final Logger logger = LogManager.getLogger(CrawlerPooledObjectFactory.class);

    /**
     * The container that provides crawler components.
     */
    protected CrawlerContainer crawlerContainer;

    /**