@Test
  fun proxyMoveTest(cleanClose: Boolean = true) {
    // Define a single Proxy at myproxy:8008 that will artificially move during the test
    val proxySelector = RecordingProxySelector()
    val socketAddress = InetSocketAddress.createUnresolved("myproxy", 8008)
    proxySelector.proxies.add(Proxy(Proxy.Type.HTTP, socketAddress))

    // Define two host names for the DNS routing of fake proxy servers

      // If the URI lacks a host (as in "http://</"), don't call the ProxySelector.
      val uri = url.toUri()
      if (uri.host == null) return immutableListOf(Proxy.NO_PROXY)

      // Try each of the ProxySelector choices until one connection succeeds.
      val proxiesOrNull = address.proxySelector.select(uri)
      if (proxiesOrNull.isNullOrEmpty()) return immutableListOf(Proxy.NO_PROXY)

    val proxyAuthenticator: Authenticator = address.proxyAuthenticator()
    val protocols: List<Protocol> = address.protocols()
    val connectionSpecs: List<ConnectionSpec> = address.connectionSpecs()
    val proxySelector: ProxySelector = address.proxySelector()
    val proxy: Proxy? = address.proxy()
    val sslSocketFactory: SSLSocketFactory? = address.sslSocketFactory()
    val hostnameVerifier: HostnameVerifier? = address.hostnameVerifier()

 */
package okhttp3.internal.proxy

import java.io.IOException
import java.net.Proxy
import java.net.ProxySelector
import java.net.SocketAddress
import java.net.URI

/**
 * A proxy selector that always returns the [Proxy.NO_PROXY].
 */
object NullProxySelector : ProxySelector() {
  override fun select(uri: URI?): List<Proxy> {
    requireNotNull(uri) { "uri must not be null" }

 * limitations under the License.
 */
package okhttp3

import java.io.IOException
import java.net.Proxy
import java.net.ProxySelector
import java.net.SocketAddress
import java.net.URI

class FakeProxySelector : ProxySelector() {
  val proxies: MutableList<Proxy> = mutableListOf()

  fun addProxy(proxy: Proxy): FakeProxySelector {
    proxies.add(proxy)
    return this
  }

import assertk.assertions.containsExactly
import java.io.IOException
import java.net.InetSocketAddress
import java.net.Proxy
import java.net.ProxySelector
import java.net.SocketAddress
import java.net.URI
import okhttp3.internal.format

class RecordingProxySelector : ProxySelector() {
  @JvmField val proxies = mutableListOf<Proxy>()

  val requestedUris = mutableListOf<URI>()
  val failures = mutableListOf<String>()

    val proxyAuthenticator: Authenticator = address.proxyAuthenticator
    val protocols: List<Protocol> = address.protocols
    val connectionSpecs: List<ConnectionSpec> = address.connectionSpecs
    val proxySelector: ProxySelector = address.proxySelector
    val sslSocketFactory: SSLSocketFactory? = address.sslSocketFactory
    val hostnameVerifier: HostnameVerifier? = address.hostnameVerifier

        DefaultProxySelector proxySelector = new DefaultProxySelector();
        for (Proxy proxy : request.getProxies()) {
            AuthenticationBuilder authBuilder = new AuthenticationBuilder();
            authBuilder.addUsername(proxy.getUsername()).addPassword(proxy.getPassword());
            proxySelector.add(
                    new org.eclipse.aether.repository.Proxy(

Routes supply the **dynamic** information necessary to actually connect to a webserver. This is the specific IP address to attempt (as discovered by a DNS query), the exact proxy server to use (if a [ProxySelector](https://developer.android.com/reference/java/net/ProxySelector.html) is in use), and which version of TLS to negotiate (for HTTPS connections).

Kotlin does have properties and we take advantage of them in OkHttp.

 * **Address**: certificatePinner, connectionSpecs, dns, hostnameVerifier, protocols, proxy,
   proxyAuthenticator, proxySelector, socketFactory, sslSocketFactory, url
 * **Cache**: directory
 * **CacheControl**: immutable, maxAgeSeconds, maxStaleSeconds, minFreshSeconds, mustRevalidate,
   noCache, noStore, noTransform, onlyIfCached, sMaxAgeSeconds