// Verify file ID is copied correctly (16 bytes starting at offset+8)
        byte[] copiedFileId = new byte[16];
        System.arraycopy(buffer, offset + 8, copiedFileId, 0, 16);
        assertArrayEquals(testFileId, copiedFileId);
    }

    @Test
    @DisplayName("writeBytesWireFormat with null file ID should handle gracefully")
    void testWriteBytesWireFormatWithNullFileId() {

cpovirk <******@****.***> 1774283786 -0700

        // Verify file ID is copied correctly (16 bytes starting at offset+8)
        byte[] copiedFileId = new byte[16];
        System.arraycopy(buffer, offset + 8, copiedFileId, 0, 16);
        assertArrayEquals(testFileId, copiedFileId);
    }

    @Test
    @DisplayName("writeBytesWireFormat with close flags should write flags correctly")
    void testWriteBytesWireFormatWithCloseFlags() {

        assertEquals(DEFAULT_CAPABILITIES, SMBUtil.readInt4(buffer, 0));

        // Verify client GUID (16 bytes)
        byte[] extractedGuid = new byte[16];
        System.arraycopy(buffer, 4, extractedGuid, 0, 16);
        assertArrayEquals(defaultClientGuid, extractedGuid);

        // Verify security mode (2 bytes)
        assertEquals(DEFAULT_SECURITY_MODE, SMBUtil.readInt2(buffer, 20));

                    rc4.update(masterKey, 0, 16, exchangedKey, 0);
                    /* RC4 was not added to Java until 1.5u7 so let's use our own for a little while longer ...
                    try {
                        Cipher rc4 = Cipher.getInstance("RC4");
                        rc4.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(userSessionKey, "RC4"));
                        rc4.update(masterKey, 0, 16, exchangedKey, 0);

        }

        // Read lease V1 data (32 bytes)
        byte[] keyBytes = new byte[16];
        System.arraycopy(buffer, bufferIndex, keyBytes, 0, 16);
        this.leaseKey = new Smb2LeaseKey(keyBytes);
        bufferIndex += 16;

        this.leaseState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        final int start = bufferIndex;

        this.capabilities = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        System.arraycopy(buffer, bufferIndex, this.serverGuid, 0, 16);
        bufferIndex += 16;

        this.securityMode = SMBUtil.readInt2(buffer, bufferIndex);
        this.dialect = SMBUtil.readInt2(buffer, bufferIndex + 2);
        bufferIndex += 4;

    }
    
    @Override
    public void decode(byte[] buffer, int offset, int length) {
        // Decode lease response
        byte[] keyBytes = new byte[16];
        System.arraycopy(buffer, offset, keyBytes, 0, 16);
        this.leaseKey = new Smb2LeaseKey(keyBytes);
        
        this.leaseState = readInt4(buffer, offset + 16);
        this.leaseFlags = readInt4(buffer, offset + 20);

        md5.update(clientChallenge, 0, 8);
        System.arraycopy(md5.digest(), 0, sessionHash, 0, 8);

        final byte[] key = new byte[21];
        System.arraycopy(passwordHash, 0, key, 0, 16);
        final byte[] ntResponse = new byte[24];
        NtlmUtil.E(key, sessionHash, ntResponse);
        return ntResponse;
    }

    /**
     * Creates the LMv2 response for the supplied information.

        this.flags = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // LeaseKey (16 bytes)
        byte[] keyBytes = new byte[16];
        System.arraycopy(buffer, bufferIndex, keyBytes, 0, 16);
        this.leaseKey = new Smb2LeaseKey(keyBytes);
        bufferIndex += 16;

        // LeaseState (4 bytes)
        this.leaseState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;