new PrintEvents().run();
  }

  private static final class PrintingEventListener extends EventListener {
    private static final Factory FACTORY = new Factory() {
      final AtomicLong nextCallId = new AtomicLong(1L);

      @Override public EventListener create(Call call) {
        long callId = nextCallId.getAndIncrement();
        System.out.printf("%04d %s%n", callId, call.request().url());

    val latch1 = CountDownLatch(1)
    val latch2 = CountDownLatch(1)
    val latch3 = CountDownLatch(1)
    val latch4 = CountDownLatch(1)
    val listener1: EventListener =
      object : EventListener() {
        override fun connectStart(
          call: Call,
          inetSocketAddress: InetSocketAddress,
          proxy: Proxy,
        ) {
          try {

HSPLokhttp3/Dns;-><clinit>()V
HSPLokhttp3/EventListener$Companion$NONE$1;-><init>()V
HSPLokhttp3/EventListener;-><clinit>()V
HSPLokhttp3/EventListener;-><init>()V
HSPLokhttp3/EventListener;->callEnd(Lokhttp3/Call;)V
HSPLokhttp3/EventListener;->callFailed(Lokhttp3/Call;Ljava/io/IOException;)V
HSPLokhttp3/EventListener;->callStart(Lokhttp3/Call;)V

      failWebSocket(ProtocolException("Request header not permitted: 'Sec-WebSocket-Extensions'"))
      return
    }

    val webSocketClient =
      client.newBuilder()
        .eventListener(EventListener.NONE)
        .protocols(ONLY_HTTP1)
        .build()
    val request =
      originalRequest.newBuilder()
        .header("Upgrade", "websocket")
        .header("Connection", "Upgrade")

        .sslSocketFactory(clientCertificates.sslSocketFactory(), clientCertificates.trustManager)
        .build()
    ```

 *  New: Add `cacheHit`, `cacheMiss`, and `cacheConditionalHit()` events to `EventListener`. Use
    these in logs, metrics, and even test cases to confirm your cache headers are configured as
    expected.

 *  New: Constant string `okhttp3.VERSION`. This is a string like "4.5.0-RC1", "4.5.0", or

    val sessionIds = mutableListOf<String>()

    assumeNetwork()

    client =
      client.newBuilder()
        .eventListenerFactory(
          clientTestRule.wrap(
            object : EventListener() {
              override fun connectionAcquired(
                call: Call,
                connection: Connection,
              ) {
                val sslSocket = connection.socket() as SSLSocket

          InetAddress.getAllByName(hostname).toList()
    })
    .build()
```

SAM conversion impacts these APIs:

 * Authenticator
 * Dispatcher.setIdleCallback(Runnable)
 * Dns
 * EventListener.Factory
 * HttpLoggingInterceptor.Logger
 * LoggingEventListener.Factory
 * OkHttpClient.Builder.hostnameVerifier(HostnameVerifier)

	public abstract fun lookup (Ljava/lang/String;)Ljava/util/List;
}

public final class okhttp3/Dns$Companion {
}

public abstract class okhttp3/EventListener {
	public static final field Companion Lokhttp3/EventListener$Companion;
	public static final field NONE Lokhttp3/EventListener;
	public fun <init> ()V
	public fun cacheConditionalHit (Lokhttp3/Call;Lokhttp3/Response;)V
	public fun cacheHit (Lokhttp3/Call;Lokhttp3/Response;)V

import java.io.IOException
import java.net.InetAddress
import java.net.InetSocketAddress
import java.net.Proxy
import okhttp3.internal.SuppressSignatureCheck

/** Data classes that correspond to each of the methods of [EventListener]. */
@SuppressSignatureCheck
sealed class CallEvent {
  abstract val timestampNs: Long
  abstract val call: Call

  val name: String
    get() = javaClass.simpleName

          }
        }
      }

    client =
      client.newBuilder()
        .connectionSpecs(listOf(spec))
        .eventListenerFactory(
          clientTestRule.wrap(
            object : EventListener() {
              override fun connectionAcquired(
                call: Call,
                connection: Connection,
              ) {
                val sslSocket = connection.socket() as SSLSocket