// a trainable dtype.
  bool ShouldRecord(
      absl::Span<const AbstractTensorHandle* const> tensors) const;
  // Unwatches this tensor on the tape. Mainly used for cleanup when deleting
  // eager tensors.
  void DeleteTrace(const AbstractTensorHandle*);

  // Consumes the internal state of the tape (so cannot be called more than

     */
    @Override
    public void init(final FilterConfig filterConfig) throws ServletException {
        // nothing
    }

    /**
     * Destroys the web API filter and cleans up resources.
     */
    @Override
    public void destroy() {
        // nothing
    }

    /**
     * Filters HTTP requests and processes them through appropriate web API managers.
     *

class ConnectionPoolTest {
  private val routePlanner = FakeRoutePlanner()
  private val factory = routePlanner.factory
  private val peer = MockHttp2Peer()

  /** The fake task runner prevents the cleanup runnable from being started.  */
  private val addressA = factory.newAddress("a")
  private val routeA1 = factory.newRoute(addressA)
  private val addressB = factory.newAddress("b")

		return 0
	}
	diff := c.evictList.Length() - size
	if diff < 0 {
		diff = 0
	}
	for i := 0; i < diff; i++ {
		c.removeOldest()
	}
	c.size = size
	return diff
}

// Close destroys cleanup goroutine. To clean up the cache, run Purge() before Close().
// func (c *LRU[K, V]) Close() {
//	c.mu.Lock()
//	defer c.mu.Unlock()
//	select {
//	case <-c.done:
//		return
//	default:
//	}

  ConcurrentMap<K, V> asMap();

  /**
   * Performs any pending maintenance operations needed by the cache. Exactly which activities are
   * performed -- if any -- is implementation-dependent.
   */
  void cleanUp();

  - [Changelog since v1.31.13](#changelog-since-v13113)
  - [Changes by Kind](#changes-by-kind)
    - [Feature](#feature)
    - [Bug or Regression](#bug-or-regression)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake)
  - [Dependencies](#dependencies)
    - [Added](#added)
    - [Changed](#changed)
    - [Removed](#removed)
- [v1.31.13](#v13113)
  - [Downloads for v1.31.13](#downloads-for-v13113)

import org.slf4j.LoggerFactory;

/**
 * Secure key management for SMB encryption.
 * Provides centralized management of encryption keys with secure storage and cleanup.
 *
 * Features:
 * - Secure key storage with optional KeyStore integration
 * - Automatic key cleanup on close
 * - Thread-safe key management
 * - Key derivation utilities
 * - Memory wiping capabilities
 */
public class SecureKeyManager implements AutoCloseable {

    /** Property key for crawling user agent configuration. */
    public static final String CRAWLING_USER_AGENT_PROPERTY = "crawling.user.agent";

    /** Property key for cleanup day interval configuration. */
    public static final String DAY_FOR_CLEANUP_PROPERTY = "day.for.cleanup";

    // ============================================================
    // Web API Property Keys
    // ============================================================

            log.error("Failed to create handle state directory: " + stateDirectory, e);
        }

        // Load persisted handles on startup
        loadPersistedHandles();

        // Schedule periodic persistence and cleanup
        scheduler.scheduleAtFixedRate(this::periodicMaintenance, 30, 30, TimeUnit.SECONDS);
    }

    /**
     * Request a new durable handle
     * @param path the file path
     * @param type the handle type

        Smb2LeaseKey key = leaseManager.requestLease(path, requestedState);
        assertNotNull(leaseManager.getLease(key));

        // Wait a bit and then cleanup with a very short expiration time
        Thread.sleep(10);
        int cleaned = leaseManager.cleanupExpiredLeases(1); // 1ms expiration

        assertEquals(1, cleaned);
        assertNull(leaseManager.getLease(key));