@Test
  fun sourceSeesBom() {
    val body = "efbbbf68656c6c6f".decodeHex().toResponseBody()
    val source = body.source()
    assertThat(source.readByte() and 0xff).isEqualTo(0xef)
    assertThat(source.readByte() and 0xff).isEqualTo(0xbb)
    assertThat(source.readByte() and 0xff).isEqualTo(0xbf)
    assertThat(source.readUtf8()).isEqualTo("hello")
  }

  @Test
  fun bytesEmpty() {
    val body = body("")

      h ^= fingerprint(buf, bufLen);
      h = remix(h);
      buf[bufLen++] = getChar(h);

      int x0 = buf[bufLen - 1] & 0xff;
      int x1 = buf[bufLen - 2] & 0xff;
      int x2 = buf[bufLen - 3] & 0xff;
      int x3 = buf[bufLen / 2] & 0xff;
      buf[((x0 << 16) + (x1 << 8) + x2) % bufLen] ^= x3;
      buf[((x1 << 16) + (x2 << 8) + x3) % bufLen] ^= i % 256;
    }

		0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff,
		0xff, 0xff, 0xff, 0x31, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x3a, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x50, 0x4b, 0x06, 0x07, 0x00,
		0x00, 0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x50,
		0x4b, 0x05, 0x06, 0x00, 0x00, 0x00, 0x00, 0xff,
		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,

    val tagClass = tagAndClass and 0b1100_0000
    val constructed = (tagAndClass and 0b0010_0000) == 0b0010_0000
    val tag =
      when (val tag0 = tagAndClass and 0b0001_1111) {
        0b0001_1111 -> readVariableLengthLong()
        else -> tag0.toLong()
      }

    // Read the length.
    val length0 = source.readByte().toInt() and 0xff
    val length =
      when {

    }

    private static void encode(final byte[] inData, final int inIndex, final char[] outData, final int outIndex) {

        final int i = ((inData[inIndex] & 0xff) << 16) + ((inData[inIndex + 1] & 0xff) << 8) + (inData[inIndex + 2] & 0xff);
        outData[outIndex] = ENCODE_TABLE[i >> 18];
        outData[outIndex + 1] = ENCODE_TABLE[i >> 12 & 0x3f];
        outData[outIndex + 2] = ENCODE_TABLE[i >> 6 & 0x3f];

		case "darwin", "ios":
			// Copied from golang.org/x/sys/unix/dev_darwin.go.
			major := uint32((dev >> 24) & 0xff)
			minor := uint32(dev & 0xffffff)
			h.Devmajor, h.Devminor = int64(major), int64(minor)
		case "dragonfly":
			// Copied from golang.org/x/sys/unix/dev_dragonfly.go.
			major := uint32((dev >> 8) & 0xff)
			minor := uint32(dev & 0xffff00ff)
			h.Devmajor, h.Devminor = int64(major), int64(minor)
		case "freebsd":

          bytes.length >= 4,
          "HashCode#asInt() requires >= 4 bytes (it only has %s bytes).",
          bytes.length);
      return (bytes[0] & 0xFF)
          | ((bytes[1] & 0xFF) << 8)
          | ((bytes[2] & 0xFF) << 16)
          | ((bytes[3] & 0xFF) << 24);
    }

    @Override
    public long asLong() {
      checkState(
          bytes.length >= 8,

    int readRDataWireFormat ( byte[] src, int srcIndex ) {
        int start = srcIndex;
        this.numberOfNames = src[ srcIndex ] & 0xFF;
        int namesLength = this.numberOfNames * 18;
        int statsLength = this.rDataLength - namesLength - 1;
        this.numberOfNames = src[ srcIndex++ ] & 0xFF;
        // gotta read the mac first so we can populate addressArray with it

      h ^= fingerprint(buf, bufLen);
      h = remix(h);
      buf[bufLen++] = getChar(h);

      int x0 = buf[bufLen - 1] & 0xff;
      int x1 = buf[bufLen - 2] & 0xff;
      int x2 = buf[bufLen - 3] & 0xff;
      int x3 = buf[bufLen / 2] & 0xff;
      buf[((x0 << 16) + (x1 << 8) + x2) % bufLen] ^= x3;
      buf[((x1 << 16) + (x2 << 8) + x3) % bufLen] ^= i % 256;
    }

        }

        off -= 4;

        b[off + 0] = (byte)SessionServicePacket.SESSION_MESSAGE;
        b[off + 1] = (byte)0x00; 
        b[off + 2] = (byte)(( len >> 8 ) & 0xFF ); 
        b[off + 3] = (byte)( len & 0xFF ); 

        out.write( b, off, 4 + len );
    }