public void connect(Consumer<HttpURLConnection> actionListener, Consumer<Exception> exceptionListener) {
            try {
                actionListener.accept(new MockHttpURLConnection(new URL(url)));
            } catch (MalformedURLException e) {
                exceptionListener.accept(e);
            }
        }
    }

    class MockHttpURLConnection extends HttpURLConnection {

        MockHttpURLConnection(URL u) {

    /**
     * Opens a connection to the specified URL.
     *
     * @param u the URL
     * @return the HttpURLConnection
     * @throws IOException if an I/O exception occurs
     */
    protected HttpURLConnection open(final URL u) throws IOException {
        final HttpURLConnection connection = (HttpURLConnection) (proxy != null ? u.openConnection(proxy) : u.openConnection());

    when (responseCode) {
      HttpURLConnection.HTTP_PROXY_AUTH -> {
        builder.addHeader("Proxy-Authenticate: Basic realm=\"protected area\"")
      }

      HttpURLConnection.HTTP_UNAUTHORIZED -> {
        builder.addHeader("WWW-Authenticate: Basic realm=\"protected area\"")
      }

      HttpURLConnection.HTTP_NO_CONTENT, HttpURLConnection.HTTP_RESET -> {

import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.Proxy;
import java.util.concurrent.ForkJoinPool;

import javax.net.ssl.SSLSocketFactory;

import org.codelibs.curl.Curl.Method;
import org.junit.Test;

/**

import assertk.assertions.isNull
import assertk.assertions.isTrue
import assertk.fail
import java.net.CookieHandler
import java.net.CookieManager
import java.net.CookiePolicy
import java.net.HttpCookie
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.URI
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.Cookie.Companion.parse

import java.io.FileNotFoundException
import java.io.IOException
import java.io.InterruptedIOException
import java.net.CookieManager
import java.net.CookiePolicy
import java.net.HttpCookie
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.ProtocolException
import java.net.Proxy
import java.net.SocketTimeoutException
import java.net.UnknownHostException
import java.net.UnknownServiceException