return false;
    }

    byte[] bytes = ip.getAddress();

    if ((bytes[8] | (byte) 0x03) != (byte) 0x03) {

      // Verify that high byte of the 64 bit identifier is zero, modulo
      // the U/L and G bits, with which we are not concerned.
      return false;
    }

    return (bytes[9] == (byte) 0x00) && (bytes[10] == (byte) 0x5e) && (bytes[11] == (byte) 0xfe);
  }

  /**

    }
  }

  /** Encodes the specified byte array, and returns the encoded {@code String}. */
  public String encode(byte[] bytes) {
    return encode(bytes, 0, bytes.length);
  }

  /**
   * Encodes the specified range of the specified byte array, and returns the encoded {@code
   * String}.
   */
  public final String encode(byte[] bytes, int off, int len) {

		{
			desc:       "Correct sha256, truncated",
			src:        bytes.NewReader([]byte("abcd-morethan-4-bytes")),
			size:       4,
			actualSize: 4,
			sha256hex:  "88d4266fd4e6338d13b845fcf289579d209c897823b9217da3e161936f031589",
			err:        ioutil.ErrOverread,
		},
		{
			desc:       "Correct MD5, nested",
			src:        mustReader(t, bytes.NewReader([]byte("abcd")), 4, "", "", 4),
			size:       4,
			actualSize: 4,

	}
	buf := make([]byte, 5)
	rb.Read(buf)
	if rb.Length() != 3 {
		t.Fatalf("expect len 3 bytes but got %d. r.w=%d, r.r=%d", rb.Length(), rb.w, rb.r)
	}
	rb.Write([]byte(strings.Repeat("abcd", 15)))

	if !bytes.Equal(rb.Bytes(nil), []byte("bcd"+strings.Repeat("abcd", 15))) {
		t.Fatalf("expect 63 ... but got %s. r.w=%d, r.r=%d", rb.Bytes(nil), rb.w, rb.r)
	}

      ByteSource
  {

    final byte[] bytes;
    final int offset;
    final int length;

    ByteArrayByteSource(byte[] bytes) {
      this(bytes, 0, bytes.length);
    }

    // NOTE: Preconditions are enforced by slice, the only non-trivial caller.
    ByteArrayByteSource(byte[] bytes, int offset, int length) {
      this.bytes = bytes;
      this.offset = offset;
      this.length = length;

	buf = new(bytes.Buffer)
	binary.Write(buf, binary.BigEndian, uint32(totalLength))
	binary.Write(buf, binary.BigEndian, uint32(headerLength))
	prelude := buf.Bytes()
	binary.Write(buf, binary.BigEndian, crc32.ChecksumIEEE(prelude))
	buf.Write(header)
	message := buf.Bytes()
	binary.Write(buf, binary.BigEndian, crc32.ChecksumIEEE(message))

	fmt.Println(buf.Bytes())
}

func genProgressHeader() {

	tests := []testCase{
		// Test - 1 valid buffer with CRLF.
		{bytes.NewReader([]byte("\r\n")), nil},
		// Test - 2 invalid buffer with no CRLF.
		{bytes.NewReader([]byte("he")), errMalformedEncoding},
		// Test - 3 invalid buffer with more characters.
		{bytes.NewReader([]byte("he\r\n")), errMalformedEncoding},
		// Test - 4 smaller buffer than expected.
		{bytes.NewReader([]byte("h")), io.ErrUnexpectedEOF},
	}
	for i, tt := range tests {

    }

    @Override
    public byte[] getExpected(byte[] bytes) {
      if (initialBytes == null) {
        return checkNotNull(bytes);
      } else {
        byte[] result = new byte[initialBytes.length + bytes.length];
        System.arraycopy(initialBytes, 0, result, 0, initialBytes.length);
        System.arraycopy(bytes, 0, result, initialBytes.length, bytes.length);
        return result;
      }
    }

	v := BatchJobReplicateCredentials{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodeBatchJobReplicateCredentials(b *testing.B) {
	v := BatchJobReplicateCredentials{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)

		CHACHA20POLY1305 = "ChaCha20Poly1305"
	)

	type JSON struct {
		Algorithm string `json:"aead"`
		ID        string `json:"id"`
		IV        []byte `json:"iv"`
		Nonce     []byte `json:"nonce"`
		Bytes     []byte `json:"bytes"`
	}
	var value JSON
	if err := json.Unmarshal(text, &value); err != nil {
		return ErrDecrypt
	}