/** Sets the [real] address for [requested].  */
  operator fun set(
    requested: InetAddress,
    real: InetSocketAddress,
  ) {
    hostMapping[requested] = real
  }

  override fun createSocket(): Socket =
    object : Socket() {
      override fun connect(
        endpoint: SocketAddress?,
        timeout: Int,
      ) {
        val requested = (endpoint as InetSocketAddress)

    private static final String TEAMCITY_VERSION = "TEAMCITY_VERSION";

    @Override
    public Optional<CIInfo> detectCI() {
        String ciEnv = System.getenv(TEAMCITY_VERSION);
        if (ciEnv != null && !ciEnv.trim().isEmpty()) {
            return Optional.of(new CIInfo() {
                @Override
                public String name() {
                    return NAME;
                }
            });

  }

  override fun requestHeadersEnd(
    call: Call,
    request: Request,
  ) {
    logWithTime("requestHeadersEnd")
  }

  override fun requestBodyStart(call: Call) {
    logWithTime("requestBodyStart")
  }

  override fun requestBodyEnd(
    call: Call,
    byteCount: Long,
  ) {
    logWithTime("requestBodyEnd: byteCount=$byteCount")
  }

  override fun requestFailed(

  vararg val certificates: Certificate,
) : SSLSession {
  override fun getApplicationBufferSize(): Int = throw UnsupportedOperationException()

  override fun getCipherSuite(): String = throw UnsupportedOperationException()

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

  override fun getId(): ByteArray = throw UnsupportedOperationException()

   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override
  protected SortedMap<K, V> standardSubMap(
      @ParametricNullness K fromKey, @ParametricNullness K toKey) {
    return subMap(fromKey, true, toKey, false);
  }

  @Override
  public NavigableMap<K, V> subMap(
      @ParametricNullness K fromKey,
      boolean fromInclusive,

   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override
  protected SortedMap<K, V> standardSubMap(
      @ParametricNullness K fromKey, @ParametricNullness K toKey) {
    return subMap(fromKey, true, toKey, false);
  }

  @Override
  public NavigableMap<K, V> subMap(
      @ParametricNullness K fromKey,
      boolean fromInclusive,

  }

  @Override
  public NavigableSet<K> navigableKeySet() {
    return new Maps.NavigableKeySet<>(this);
  }

  @Override
  public Set<K> keySet() {
    return navigableKeySet();
  }

  @Override
  public NavigableSet<K> descendingKeySet() {
    return descendingMap().navigableKeySet();
  }

  @Override
  public NavigableMap<K, V> descendingMap() {
    return new DescendingMap();
  }

    private final Object mutex = new Object[0]; // something Serializable

    @Override
    public boolean offer(E o) {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.offer(o);
    }

    @Override
    public @Nullable E poll() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.poll();
    }

    @Override
    public E remove() {
      assertTrue(Thread.holdsLock(mutex));

    super(domain);
  }

  @Override
  public C first() {
    throw new NoSuchElementException();
  }

  @Override
  public C last() {
    throw new NoSuchElementException();
  }

  @Override
  public int size() {
    return 0;
  }

  @Override
  public ContiguousSet<C> intersection(ContiguousSet<C> other) {
    return this;
  }

  @Override
  public Range<C> range() {

    }

    @Override public void callStart(Call call) {
      printEvent("callStart");
    }

    @Override public void proxySelectStart(Call call, HttpUrl url) {
      printEvent("proxySelectStart");
    }

    @Override public void proxySelectEnd(Call call, HttpUrl url, List<Proxy> proxies) {
      printEvent("proxySelectEnd");
    }

    @Override public void dnsStart(Call call, String domainName) {