System.out.printf("%.3f %s%n", elapsedNanos / 1000000000d, name);
  }

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

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

  @Override public void dnsStart(Call call, String domainName) {
    printEvent("dnsStart");
  }

import assertk.assertions.isTrue
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.CallEvent.CallEnd
import okhttp3.CallEvent.CallStart
import okhttp3.CallEvent.ConnectEnd
import okhttp3.CallEvent.ConnectStart
import okhttp3.CallEvent.ConnectionAcquired
import okhttp3.CallEvent.ConnectionReleased

document's age at the time it was served based on "Last-Modified". Default expiration dates aren't used for URIs
containing a query.

 - CallStart
 - **CacheHit**
 - CallEnd

### Cache Miss

Under a cache miss the normal request events are seen but an additional event shows the presence of the cache.

01-01 12:53:32.811 10999 11089 D OkHttp  : [49 ms] responseBodyEnd: byteCount=128
01-01 12:53:32.811 10999 11089 D OkHttp  : [49 ms] connectionReleased
01-01 12:53:32.811 10999 11089 D OkHttp  : [49 ms] callEnd
01-01 12:53:32.816 10999 11090 D OkHttp  : [54 ms] responseHeadersStart

import kotlin.reflect.KClass
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.CallEvent.CallEnd
import okhttp3.CallEvent.CallStart
import okhttp3.CallEvent.ConnectEnd
import okhttp3.CallEvent.ConnectStart
import okhttp3.CallEvent.ConnectionAcquired
import okhttp3.CallEvent.ConnectionReleased

import javax.net.ssl.X509TrustManager
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.Cache
import okhttp3.Call
import okhttp3.CallEvent.CallEnd
import okhttp3.CallEvent.CallStart
import okhttp3.CallEvent.ConnectEnd
import okhttp3.CallEvent.ConnectStart
import okhttp3.CallEvent.ConnectionAcquired
import okhttp3.CallEvent.ConnectionReleased

    }

    override fun secureConnectEnd(
      call: Call,
      handshake: Handshake?,
    ) {
      logger.removeHandler(loggerHandler)
    }

    override fun callEnd(call: Call) {
      // Cleanup log handler if failed.
      logger.removeHandler(loggerHandler)
    }

    override fun connectionAcquired(
      call: Call,
      connection: Connection,
    ) {

      }
    }

    val result = timeoutExit(e)
    if (e != null) {
      eventListener.callFailed(this, result!!)
    } else {
      eventListener.callEnd(this)
    }
    return result
  }

  /**
   * Remove this call from the connection's list of allocations. Returns a socket that the caller
   * should close.
   */

import mockwebserver3.SocketEffect.CloseSocket
import mockwebserver3.SocketEffect.ShutdownConnection
import mockwebserver3.SocketEffect.Stall
import mockwebserver3.junit5.StartStop
import okhttp3.CallEvent.CallEnd
import okhttp3.CallEvent.CallFailed
import okhttp3.CallEvent.CallStart
import okhttp3.CallEvent.ConnectEnd
import okhttp3.CallEvent.ConnectStart
import okhttp3.CallEvent.ConnectionAcquired

import okio.Buffer
import okio.BufferedSink
import okio.BufferedSource
import okio.ByteString
import okio.Sink
import okio.Timeout
import okio.buffer

/**
 * A scriptable web server. Callers supply canned responses and the server replays them upon request
 * in sequence.
 */
public class MockWebServer : Closeable {
  private val taskRunnerBackend =
    TaskRunner.RealBackend(