/** Returns the client's proxy authenticator. */
  @get:JvmName("proxyAuthenticator") val proxyAuthenticator: Authenticator,
  /**
   * Returns this address's explicitly-specified HTTP proxy, or null to delegate to the
   * [proxy selector][proxySelector].
   */
  @get:JvmName("proxy") val proxy: Proxy?,
  protocols: List<Protocol>,
  connectionSpecs: List<ConnectionSpec>,
  /**

    return proxyClass.isInstance(arg)
        // Equal proxy instances should mostly be instance of proxyClass
        // Under some edge cases (such as the proxy of JDK types serialized and then deserialized)
        // the proxy type may not be the same.
        // We first check isProxyClass() so that the common case of comparing with non-proxy objects
        // is efficient.
        || (Proxy.isProxyClass(arg.getClass())

    }
  }

  @Test
  fun testUrlConnectionPlaintextProxied() {
    testRequest {
      val proxy =
        Proxy(
          Proxy.Type.HTTP,
          it.remoteAddress(),
        )

      val url = URI(mockServer.endpoint + "/person?name=peter").toURL()

      val connection = url.openConnection(proxy) as HttpURLConnection

      assertThat(
        connection.inputStream
          .source()

 *   <li>SO_TIMEOUT_PROPERTY: Socket timeout setting.</li>
 *   <li>PROXY_HOST_PROPERTY: Proxy host setting.</li>
 *   <li>PROXY_PORT_PROPERTY: Proxy port setting.</li>
 *   <li>PROXY_AUTH_SCHEME_PROPERTY: Proxy authentication scheme.</li>
 *   <li>PROXY_CREDENTIALS_PROPERTY: Proxy credentials.</li>
 *   <li>USER_AGENT_PROPERTY: User agent string.</li>

                                "Legacy/insecurely encrypted password detected for proxy " + proxy.getId(),
                                Severity.WARNING,
                                "proxy: " + proxy.getId(),
                                -1,
                                -1,
                                null));
                    }
                    proxy.setPassword(securityDispatcher.decrypt(password));

/**
 * Performs either **preemptive** authentication before connecting to a proxy server, or
 * **reactive** authentication after receiving a challenge from either an origin web server or proxy
 * server.
 *
 * ## Preemptive Authentication
 *
 * To make HTTPS calls using an HTTP proxy server OkHttp must first negotiate a connection with
 * the proxy. This proxy connection is called a "TLS Tunnel" and is specified by

    val proxyAuthorization = response.code == 407
    val proxy = route?.proxy ?: Proxy.NO_PROXY

    for (challenge in challenges) {
      if (!"Basic".equals(challenge.scheme, ignoreCase = true)) {
        continue
      }

      val dns = route?.address?.dns ?: defaultDns
      val auth =
        if (proxyAuthorization) {
          val proxyAddress = proxy.address() as InetSocketAddress

    public void setAuthentication(Authentication authentication) {
        this.authentication = authentication;
    }

    @Override
    public Proxy getProxy() {
        return proxy;
    }

    @Override
    public void setProxy(Proxy proxy) {
        this.proxy = proxy;
    }

    @Override
    public boolean isBlacklisted() {
        return false;
    }

    @Override

      connectionPool.connectionListener.connectStart(route, call)

      connectSocket()
      success = true
      return ConnectResult(plan = this)
    } catch (e: IOException) {
      // If we used the ProxySelector, and got a IOException during connect, report the failure.
      if (route.address.proxy == null && route.proxy.type() != Proxy.Type.DIRECT) {

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