@Throws(SocketException::class)
  override fun setTrafficClass(value: Int) {
    delegate!!.trafficClass = value
  }

  @Throws(SocketException::class)
  override fun getTrafficClass(): Int = delegate!!.trafficClass

  @Throws(IOException::class)
  override fun sendUrgentData(value: Int) {
    delegate!!.sendUrgentData(value)
  }