new byte[] {LEAST},
            new byte[] {LEAST, LEAST},
            new byte[] {LEAST, (byte) 1},
            new byte[] {(byte) 1},
            new byte[] {(byte) 1, LEAST},
            new byte[] {GREATEST, GREATEST - (byte) 1},
            new byte[] {GREATEST, GREATEST},
            new byte[] {GREATEST, GREATEST, GREATEST});

    Comparator<byte[]> comparator = SignedBytes.lexicographicalComparator();

}

// ReadByte reads and returns a single byte.
// If no byte is available, returns an error.
func (b *Reader) ReadByte() (byte, error) {
	b.lastRuneSize = -1
	for b.r == b.w {
		if b.err != nil {
			return 0, b.readErr()
		}
		b.fill() // buffer is empty
	}
	c := b.buf[b.r]
	b.r++
	b.lastByte = int(c)
	return c, nil
}

// UnreadByte unreads the last byte. Only the most recently read byte can be unread.

// 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.

// For example,
//
//	"10000;chunk-signature=..." => "10000", "chunk-signature=..."
func parseS3ChunkExtension(buf []byte) ([]byte, []byte) {
	buf = trimTrailingWhitespace(buf)
	semi := bytes.Index(buf, []byte(s3ChunkSignatureStr))
	// Chunk signature not found, return the whole buffer.
	if semi == -1 {
		return buf, nil
	}
	return buf[:semi], parseChunkSignature(buf[semi:])

)

var internalByteBuffer = bpool.Pool[*[]byte]{
	New: func() *[]byte {
		m := make([]byte, 0, defaultBufferSize)
		return &m
	},
}

var internal32KByteBuffer = bpool.Pool[*[]byte]{
	New: func() *[]byte {
		m := make([]byte, 0, biggerBufMin)
		return &m
	},
}

// GetByteBuffer can be replaced with a function that returns a small
// byte buffer.
// When replacing PutByteBuffer should also be replaced

	PolicyConfigJSON            []byte
	NotificationConfigXML       []byte
	LifecycleConfigXML          []byte
	ObjectLockConfigXML         []byte
	VersioningConfigXML         []byte
	EncryptionConfigXML         []byte
	TaggingConfigXML            []byte
	QuotaConfigJSON             []byte
	ReplicationConfigXML        []byte
	BucketTargetsConfigJSON     []byte
	BucketTargetsConfigMetaJSON []byte

  }

  private static long hashLength33To64(byte[] bytes, int offset, int length) {
    long z = load64(bytes, offset + 24);
    long a = load64(bytes, offset) + (length + load64(bytes, offset + length - 16)) * K0;
    long b = rotateRight(a + z, 52);
    long c = rotateRight(a, 37);
    a += load64(bytes, offset + 8);
    c += rotateRight(a, 7);
    a += load64(bytes, offset + 16);
    long vf = a + z;

	// 1: Echo
	errFatal(local.RegisterSingleHandler(handlerTest, func(payload []byte) ([]byte, *RemoteErr) {
		t.Log("1: server payload: ", len(payload), "bytes.")
		return append([]byte{}, payload...), nil
	}))
	// 2: Return as error
	errFatal(local.RegisterSingleHandler(handlerTest2, func(payload []byte) ([]byte, *RemoteErr) {
		t.Log("2: server payload: ", len(payload), "bytes.")
		err := RemoteErr(payload)
		return nil, &err
	}))

  public Hasher putBytes(byte[] bytes) {
    checkNotNull(bytes);
    update(bytes);
    return this;
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putBytes(byte[] bytes, int off, int len) {
    checkPositionIndexes(off, off + len, bytes.length);
    update(bytes, off, len);
    return this;
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putBytes(ByteBuffer bytes) {
    update(bytes);

	testCases2 := []struct {
		objectName          string
		data                []byte
		expectedRespStatus  int
		accessKey           string
		secretKey           string
		malformedBody       bool
		ignoreContentLength bool
	}{
		// Success case.
		{
			objectName:          "test",
			data:                bytes.Repeat([]byte("a"), 1025),
			expectedRespStatus:  http.StatusNoContent,