private enum HashMethod {
    MESSAGE_DIGEST_API() {
      @Override
      public byte[] hash(Algorithm algorithm, byte[] input) {
        MessageDigest md = algorithm.getMessageDigest();
        md.update(input);
        return md.digest();
      }
    },
    HASH_FUNCTION_DIRECT() {
      @Override
      public byte[] hash(Algorithm algorithm, byte[] input) {
        return algorithm.getHashFunction().hashBytes(input).asBytes();
      }

  private enum HashMethod {
    MESSAGE_DIGEST_API() {
      @Override
      public byte[] hash(Algorithm algorithm, byte[] input) {
        MessageDigest md = algorithm.getMessageDigest();
        md.update(input);
        return md.digest();
      }
    },
    HASH_FUNCTION_DIRECT() {
      @Override
      public byte[] hash(Algorithm algorithm, byte[] input) {
        return algorithm.getHashFunction().hashBytes(input).asBytes();
      }

	}
	var (
		sealingKey   [32]byte
		encryptedKey bytes.Buffer
	)
	mac := hmac.New(sha256.New, extKey)
	mac.Write(iv[:])
	mac.Write([]byte(domain))
	mac.Write([]byte(SealAlgorithm))
	mac.Write([]byte(path.Join(bucket, object))) // use path.Join for canonical 'bucket/object'
	mac.Sum(sealingKey[:0])

  @Override
  @CanIgnoreReturnValue
  public Hasher putShort(short s) {
    putByte((byte) s);
    putByte((byte) (s >>> 8));
    return this;
  }

  @Override
  @CanIgnoreReturnValue
  public Hasher putInt(int i) {
    putByte((byte) i);
    putByte((byte) (i >>> 8));
    putByte((byte) (i >>> 16));
    putByte((byte) (i >>> 24));
    return this;
  }

  @Override
  @CanIgnoreReturnValue

// When sent as a parameter, the caller gives up ownership of the byte slice.
// When returned as response, the handler also gives up ownership of the byte slice.
func NewBytesWith(b []byte) *Bytes {
	bb := Bytes(b)
	return &bb
}

// NewBytesWithCopyOf returns a new byte slice with a copy of the provided content.
func NewBytesWithCopyOf(b []byte) *Bytes {
	if b == nil {
		bb := Bytes(nil)
		return &bb
	}

)

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

      Byte[] suffix = {(byte) 86, (byte) 99};
      Byte[] all = concat(concat(prefix, elements), suffix);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  private static Byte[] concat(Byte[] left, Byte[] right) {
    Byte[] result = new Byte[left.length + right.length];
    System.arraycopy(left, 0, result, 0, left.length);
    System.arraycopy(right, 0, result, left.length, right.length);

	testCases := []struct {
		name         Name
		expectedData []byte
		expectErr    bool
	}{
		{ObjectAccessedAll, []byte("<Name>s3:ObjectAccessed:*</Name>"), false},
		{ObjectRemovedDelete, []byte("<Name>s3:ObjectRemoved:Delete</Name>"), false},
		{ObjectRemovedNoOP, []byte("<Name>s3:ObjectRemoved:NoOP</Name>"), false},
		{blankName, []byte("<Name></Name>"), false},
	}

	for i, testCase := range testCases {

    hasher = HASH_FN.newHasher();
    hasher
        .putByte((byte) 0x01)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00);
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();

    hasher = HASH_FN.newHasher();
    hasher
        .putByte((byte) 0x01)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x01)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00)
        .putByte((byte) 0x00);
    assertEquals(hashCode, hasher.hash().asLong());

    hasher = HASH_FN.newHasher();