// Continue with destruction even if listener fails
            }
        }

        // Close the object if it implements AutoCloseable or Closeable
        final T obj = p.getObject();
        if (obj instanceof AutoCloseable) {
            try {
                ((AutoCloseable) obj).close();
            } catch (final Exception e) {

        public static void resetInstanceCount() {
            instanceCount = 0;
        }
    }

    /**
     * Closeable test component for testing AutoCloseable resource handling
     */
    public static class CloseableTestComponent implements AutoCloseable {
        private static AtomicInteger instanceCounter = new AtomicInteger(0);
        private static AtomicInteger closeCounter = new AtomicInteger(0);

import jakarta.annotation.PostConstruct;
import jakarta.annotation.Resource;

/**
 * A factory class for managing and creating crawler clients based on URL patterns.
 * This class implements AutoCloseable to properly handle resource cleanup.
 *
 * <p>The factory maintains a map of regular expression patterns to crawler clients,
 * allowing for URL-based client selection. Clients can be added with specific patterns

- `AtomicLong` for counters (`CrawlerContext.accessCount`)
- `volatile` for status flags
- Synchronized blocks for critical sections
- Thread-local storage via `CrawlingParameterUtil`

**Resource Management**:
- `AutoCloseable` throughout
- `DeferredFileOutputStream` for large responses (temp files for >1MB)
- Connection pooling with limits
- Background temp file deletion via `FileUtil.deleteInBackground()`

**Fault Tolerance**:

import java.util.Map;

/**
 * Interface for cloud storage operations.
 * Implementations provide access to S3-compatible storage, GCS, or other cloud storage systems.
 */
public interface StorageClient extends AutoCloseable {

    /**
     * Uploads an object to storage.
     *
     * @param objectName the name/path for the object
     * @param inputStream the input stream of data to upload

 * including adding URLs to the queue, filtering URLs, managing crawler threads,
 * and handling the overall crawling lifecycle.
 *
 * <p>It implements the Runnable interface to be executed in a separate thread,
 * and the AutoCloseable interface to ensure resources are properly released after use.
 *
 * <p>The crawler uses several services and components, such as UrlQueueService, DataService,

 * It implements rank fusion techniques to combine results from different search engines
 * and provides a unified search interface.
 */
public class RankFusionProcessor implements AutoCloseable {

    private static final Logger logger = LogManager.getLogger(RankFusionProcessor.class);

    /** Thread-safe list of rank fusion searchers available for processing search requests */

        }
    }

    /**
     * A holder for the directory context.
     */
    protected class DirContextHolder implements AutoCloseable {
        private final DirContext context;

        private int counter = 1;

        /**
         * Constructs a new directory context holder.
         *