private fun isMappedIpv4Address(address: ByteArray): Boolean {
  if (address.size != 16) return false

  for (i in 0 until 10) {
    if (address[i] != 0.toByte()) return false
  }

  if (address[10] != 255.toByte()) return false
  if (address[11] != 255.toByte()) return false

  return true
}

/** Encodes an IPv4 address in canonical form according to RFC 4001. */

     */
    @JvmField
    val FORM = "multipart/form-data".toMediaType()

    private val COLONSPACE = byteArrayOf(':'.code.toByte(), ' '.code.toByte())
    private val CRLF = byteArrayOf('\r'.code.toByte(), '\n'.code.toByte())
    private val DASHDASH = byteArrayOf('-'.code.toByte(), '-'.code.toByte())

    /**
     * Appends a quoted-string to a StringBuilder.
     *

    }
  }

  @Test fun readPaddedDataFrame() {
    val dataLength = 1123
    val expectedData = ByteArray(dataLength)
    Arrays.fill(expectedData, 2.toByte())
    val paddingLength = 254
    val padding = ByteArray(paddingLength)
    Arrays.fill(padding, 0.toByte())
    writeMedium(frame, dataLength + paddingLength + 1)
    frame.writeByte(Http2.TYPE_DATA)
    frame.writeByte(FLAG_PADDED)

        // array.
        while (mid > -1 && this[mid] != '\n'.code.toByte()) {
          mid--
        }
        mid++

        // Now look for the ending '\n'.
        var end = 1
        while (this[mid + end] != '\n'.code.toByte()) {
          end++
        }
        val publicSuffixLength = mid + end - mid

      throw ProtocolException("constructed strings not supported for DER")
    }
    return source.readUtf8(bytesLeft)
  }

  fun readObjectIdentifier(): String {
    val result = Buffer()
    val dot = '.'.code.toByte().toInt()
    when (val xy = readVariableLengthLong()) {
      in 0L until 40L -> {
        result.writeDecimalLong(0)
        result.writeByte(dot)
        result.writeDecimalLong(xy)
      }

        if (paramTypes[index].isPrimitive()) {
            if (paramTypes[index] == byte.class) {
                args[index] = ByteConversionUtil.toByte(args[index]);
                return true;
            } else if (paramTypes[index] == short.class) {
                args[index] = ShortConversionUtil.toShort(args[index]);
                return true;

   * malformed.
   */
  @Throws(IOException::class)
  fun checkLowercase(name: ByteString): ByteString {
    for (i in 0 until name.size) {
      if (name[i] in 'A'.code.toByte()..'Z'.code.toByte()) {
        throw IOException("PROTOCOL_ERROR response malformed: mixed case name: ${name.utf8()}")
      }
    }
    return name
  }

    assertThat(actual).isEqualTo(expected)
  }

  private fun intArrayToByteArray(bytes: IntArray): ByteString {
    val data = ByteArray(bytes.size)
    for (i in bytes.indices) {
      data[i] = bytes[i].toByte()
    }
    return ByteString.of(*data)
  }

  private fun readerHeaderTableLength(): Int {
    return hpackReader!!.dynamicTable.size
  }

     *
     * @param parser The XML parser
     * @param toType The target type
     * @return Converted instance of the target type
     */
    private Object parse(final MXParser parser, final TypeLiteral<?> toType) throws Exception {
        parser.require(XmlPullParser.START_TAG, null, null);

        final Class<?> rawType = toType.getRawType();
        if (XmlNode.class.isAssignableFrom(rawType)) {

     */
    public static Date toDate(final Object src) {
        return toDate(src, null, LocaleUtil.getDefault());
    }

    /**
     * オブジェクトを{@link Date}に変換します。
     *
     * @param src
     *            変換元のオブジェクト
     * @param pattern
     *            パターン文字列
     * @return 変換された{@link Date}
     */
    public static Date toDate(final Object src, final String pattern) {