import java.net.Authenticator
import java.net.PasswordAuthentication

class RecordingAuthenticator(
  private val authentication: PasswordAuthentication? =
    PasswordAuthentication(
      "username",
      "password".toCharArray(),
    ),
) : Authenticator() {
  val calls = mutableListOf<String>()

  override fun getPasswordAuthentication(): PasswordAuthentication? {
    calls.add(

                    Authenticator.setDefault(new Authenticator() {
                        @Override
                        protected PasswordAuthentication getPasswordAuthentication() {
                            return new PasswordAuthentication(getHttpProxyUsername(), getHttpProxyPassword().toCharArray());
                        }
                    });
                }
            } else {

import java.io.File
import java.io.IOException
import java.io.InputStream
import java.net.ConnectException
import java.net.CookieManager
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.PasswordAuthentication
import java.net.ProtocolException
import java.net.Proxy
import java.net.ProxySelector
import java.net.ServerSocket
import java.net.Socket
import java.net.SocketAddress
import java.net.SocketException