@Throws(SSLPeerUnverifiedException::class)
  override fun getPeerPrincipal(): Principal = delegate!!.peerPrincipal

  override fun getLocalPrincipal(): Principal = delegate!!.localPrincipal

  override fun getCipherSuite(): String = delegate!!.cipherSuite

  override fun getProtocol(): String = delegate!!.protocol

  override fun getLastAccessedTime(): Long = throw UnsupportedOperationException()

  override fun getLocalCertificates(): Array<Certificate> = throw UnsupportedOperationException()

  override fun getLocalPrincipal(): Principal = throw UnsupportedOperationException()

  override fun getPacketBufferSize(): Int = throw UnsupportedOperationException()

  @Suppress("UNCHECKED_CAST")
  @Throws(SSLPeerUnverifiedException::class)