private static final byte[] CONTEXT_NAME_BYTES = CONTEXT_NAME.getBytes();
    private static final int STRUCTURE_SIZE = 16;

    private byte[] fileId; // 16-byte file ID from previous open

    /**
     * Create a new durable handle reconnect context
     * @param fileId the 16-byte file ID from the previous open
     */
    public DurableHandleReconnect(byte[] fileId) {
        if (fileId.length != 16) {

        String sessionId = "test-session-2";
        byte[] salt = preauthService.generatePreauthSalt();

        preauthService.initializeSession(sessionId, salt, PreauthIntegrityService.HASH_ALGO_SHA512);

        byte[] initialHash = preauthService.getCurrentPreauthHash(sessionId);
        assertNotNull(initialHash);

        // Update with negotiate message
        byte[] negotiateMessage = "SMB2 Negotiate Request".getBytes();

// The context is bound to the returned ciphertext.
//
// The same context must be provided when decrypting the
// ciphertext.
func EncryptBytes(k *kms.KMS, plaintext []byte, context kms.Context) ([]byte, error) {
	ciphertext, err := Encrypt(k, bytes.NewReader(plaintext), context)
	if err != nil {
		return nil, err
	}
	return io.ReadAll(ciphertext)
}

// DecryptBytes decrypts the ciphertext using a key managed by the KMS.

	// any state.
	r := NewReader([]byte("0123456789"))
	var wg sync.WaitGroup
	for i := 0; i < 5; i++ {
		wg.Add(1)
		go func(i int) {
			defer wg.Done()
			var buf [1]byte
			r.ReadAt(buf[:], int64(i))
		}(i)
	}
	wg.Wait()
}

func TestEmptyReaderConcurrent(t *testing.T) {
	// Test for the race detector, to verify a Read that doesn't yield any bytes

        assertEquals(expected, actual, "size() must be 8-byte aligned");
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, 5 })
    @DisplayName("writeBytesWireFormat writes StructureSize=4 and Reserved=0 at given offset")
    void writeBytesWireFormat_writesExpectedValuesAtOffset(int offset) {
        // Arrange
        Smb2LogoffRequest req = newRequest();
        byte[] buf = new byte[offset + 8]; // extra space for safety

        // Test that an IOException is thrown if the input stream does not provide enough bytes.
        // Simulate reading less than 6 bytes.
        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(5); // Simulate reading only 5 bytes

        SessionRetargetResponsePacket packet = new SessionRetargetResponsePacket();
        byte[] buffer = new byte[6];

        // Assert that an IOException is thrown with the expected message.

        // Prepare test data with offset
        int offset = 10;
        String expectedFilename = "offsetfile.txt";
        byte[] buffer = new byte[200 + offset];
        byte[] dataBuffer = createValidBuffer(expectedFilename, "OFFSET~1.TXT", true);
        System.arraycopy(dataBuffer, 0, buffer, offset, dataBuffer.length);

        // Decode from offset

     * Gets the flags as an integer value
     * @return flags
     */
    public int getFlags() {
        return SMBUtil.readInt4(this.getRaw(), 0);
    }

    private static byte[] encode(final int flags) {
        final byte[] raw = new byte[4];
        SMBUtil.writeInt4(flags, raw, 0);
        return raw;
    }

    @Test
    void testWriteSetupWireFormat() {
        byte[] dst = new byte[10];
        int result = response.writeSetupWireFormat(dst, 0);
        assertEquals(0, result, "writeSetupWireFormat should always return 0.");
    }

    /**
     * Tests the writeParametersWireFormat method.
     */
    @Test
    void testWriteParametersWireFormat() {
        byte[] dst = new byte[10];

		trailers: req.Trailer,
		reader:   bufio.NewReader(req.Body),
		buffer:   make([]byte, 64*1024),
	}, ErrNone
}

// Represents the overall state that is required for decoding a
// AWS Signature V4 chunked reader.
type s3UnsignedChunkedReader struct {
	reader   *bufio.Reader
	trailers http.Header

	buffer []byte
	offset int
	err    error
	debug  bool
}