@Test
    @DisplayName("Should update lease state")
    void testUpdateLease() {
        String path = "/share/file.txt";
        int requestedState = Smb2LeaseState.SMB2_LEASE_FULL;
        int grantedState = Smb2LeaseState.SMB2_LEASE_READ_WRITE;

        Smb2LeaseKey key = leaseManager.requestLease(path, requestedState);
        leaseManager.updateLease(key, grantedState);

        LeaseEntry entry = leaseManager.getLease(key);

    }
    
    @Test
    public void testLeaseStateFlags() {
        int state = Smb2LeaseState.SMB2_LEASE_READ_WRITE;
        
        assertTrue((state & Smb2LeaseState.SMB2_LEASE_READ_CACHING) != 0);
        assertTrue((state & Smb2LeaseState.SMB2_LEASE_WRITE_CACHING) != 0);
        assertFalse((state & Smb2LeaseState.SMB2_LEASE_HANDLE_CACHING) != 0);
    }
    
    @Test
    public void testLeaseManager() {

            // Flush any cached data if losing write cache
            if (Smb2LeaseState.hasWriteCaching(oldState) && !Smb2LeaseState.hasWriteCaching(newState)) {
                flushCachedWrites(entry.getPath());
            }

            // Invalidate cached data if losing read cache
            if (Smb2LeaseState.hasReadCaching(oldState) && !Smb2LeaseState.hasReadCaching(newState)) {
                invalidateReadCache(entry.getPath());

        if (newState != 0) {
            if ((newState & Smb2LeaseState.SMB2_LEASE_READ_CACHING) == 0) {
                // Lost read cache - invalidate directory cache
                entry.invalidate();
            }
        } else {
            // Lease completely broken - invalidate cache
            entry.invalidate();
        }

        if ((newState & Smb2LeaseState.SMB2_LEASE_HANDLE_CACHING) == 0) {

        assertTrue(cacheEntry.isComplete());

        // Simulate lease break with loss of read cache
        directoryLeaseManager.handleDirectoryLeaseBreak(leaseKey, Smb2LeaseState.SMB2_LEASE_HANDLE_CACHING);

        // Cache should be invalidated
        assertFalse(cacheEntry.isComplete());

        // Step 10: Test lease release

        
        // Handle lease break by updating cache behavior
        if ((newState & Smb2LeaseState.SMB2_LEASE_READ_CACHING) == 0) {
            // Lost read cache - invalidate directory cache
            entry.invalidate();
        }
        
        if ((newState & Smb2LeaseState.SMB2_LEASE_HANDLE_CACHING) == 0) {
            // Lost handle cache - may need to close directory handle

                
                // Add lease context if associated
                if (info.leaseKey != null) {
                    createReq.addLeaseContext(info.leaseKey, 
                        Smb2LeaseState.SMB2_LEASE_NONE, false);
                }
                
                // Send create request
                Smb2CreateResponse response = (Smb2CreateResponse) 

        entry.updateChild("file1.txt", 1024L, 1000L, false, 0x20, 500L, 800L);
        entry.markComplete();

        // Break lease with loss of read cache
        int newState = Smb2LeaseState.SMB2_LEASE_HANDLE_CACHING; // Lost read cache
        directoryLeaseManager.handleDirectoryLeaseBreak(leaseKey, newState);

        // Cache should be invalidated
        assertFalse(entry.isComplete());

├── Smb2LeaseBreak.java          - Lease break notification handling
├── Smb2LeaseContext.java        - Lease context for create requests
├── Smb2LeaseKey.java            - 16-byte lease key management
├── Smb2LeaseState.java          - Lease state flags (R, H, W)
└── LeaseManager.java            - Central lease management
```

#### 1.2 Implementation Tasks