/**
 * Cache entry for directory contents with thread-safe operations
 */
public class DirectoryCacheEntry {

    private final String directoryPath;
    private final Smb2LeaseKey leaseKey;
    private final long createTime;
    private volatile long lastUpdateTime;
    private volatile long lastAccessTime;

    private final ConcurrentHashMap<String, FileInfo> children;

    private final CIFSContext context;
    private final LeaseManager baseLeaseManager;
    private final ConcurrentHashMap<String, DirectoryCacheEntry> directoryCache;
    private final ConcurrentHashMap<Smb2LeaseKey, String> leaseToPath;
    private final ScheduledExecutorService scheduler;
    private final DirectoryChangeNotifier changeNotifier;

    /**
     * Create a new directory lease manager
     *

import org.slf4j.LoggerFactory;

import jcifs.CIFSException;
import jcifs.internal.smb2.lease.DirectoryCacheScope;
import jcifs.internal.smb2.lease.DirectoryLeaseManager;
import jcifs.internal.smb2.lease.Smb2LeaseKey;
import jcifs.internal.smb2.lease.Smb2LeaseState;

/**
 * Extension methods for SmbFile to support directory leasing functionality.
 *
 * This utility class provides static methods that enhance SmbFile operations with

    /**
     * Change notification handle
     */
    public static class ChangeNotificationHandle {
        private final String directoryPath;
        private final Smb2LeaseKey leaseKey;
        private final SmbFile directoryFile;
        private volatile boolean active;
        private CompletableFuture<Void> notificationFuture;

        /**

/**
 * Unit tests for DirectoryCacheEntry
 */
public class DirectoryCacheEntryTest {

    private DirectoryCacheEntry entry;
    private Smb2LeaseKey leaseKey;
    private String directoryPath = "/test/dir";

    @BeforeEach
    public void setUp() {
        leaseKey = new Smb2LeaseKey();
        entry = new DirectoryCacheEntry(directoryPath, leaseKey, DirectoryCacheScope.IMMEDIATE_CHILDREN);
    }

    @Test

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.CIFSContext;
import jcifs.internal.smb2.lease.Smb2LeaseKey;
import jcifs.internal.smb2.persistent.HandleGuid;
import jcifs.internal.smb2.persistent.HandleInfo;
import jcifs.internal.smb2.persistent.HandleType;
import jcifs.internal.smb2.persistent.PersistentHandleManager;

/**

     * @param requestedState the requested lease state
     * @param parentLeaseKey the parent lease key (can be null)
     * @param epoch the lease epoch
     */
    public void addLeaseV2Context(Smb2LeaseKey leaseKey, int requestedState, Smb2LeaseKey parentLeaseKey, int epoch) {
        LeaseV2CreateContextRequest leaseContext = new LeaseV2CreateContextRequest(leaseKey, requestedState, parentLeaseKey, epoch);
        addCreateContext(leaseContext);

        private volatile long lastAccessTime;
        private final Smb2LeaseKey leaseKey;  // Associated lease if any
        private volatile boolean reconnecting;
        private transient SmbFile file;  // Not serialized
        
        public HandleInfo(String path, HandleGuid guid, byte[] fileId, 
                         HandleType type, long timeout, Smb2LeaseKey leaseKey) {
            this.path = path;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.internal.smb2.lease.Smb2LeaseKey;

/**
 * Manager for persistent and durable SMB handles.
 *
 * This class provides:
 * - Handle lifecycle management
 * - Persistent storage for persistent handles
 * - Expiration tracking for durable handles

        return hasDurableHandleResponse();
    }

    /**
     * Get the lease key from the response
     * @return the lease key or null if no lease was granted
     */
    public jcifs.internal.smb2.lease.Smb2LeaseKey getLeaseKey() {
        LeaseV2CreateContextResponse v2 = getLeaseV2Context();
        if (v2 != null) {
            return v2.getLeaseKey();
        }
        LeaseV1CreateContextResponse v1 = getLeaseV1Context();