} else {
        return EventListener.NONE;
      }
    }
  };

  ...
}
```

### Events with Failures

When an operation fails, a failure method is called. This is `connectFailed()` for failures while building a connection to the server, and `callFailed()` when the HTTP call fails permanently. When a failure happens it is possible that a `start` event won’t have a corresponding `end` event.

    // JDK 8
    // CallStart, ProxySelectStart, ProxySelectEnd, DnsStart, DnsEnd, ConnectStart, SecureConnectStart,
    // ConnectFailed, CallFailed
    // Gradle - JDK 11
    // CallStart, ProxySelectStart, ProxySelectEnd, DnsStart, DnsEnd, ConnectStart, SecureConnectStart,
    // SecureConnectEnd, ConnectFailed, CallFailed
    val recordedEventTypes = eventRecorder.recordedEventTypes()
    assertThat(recordedEventTypes).startsWith(

    route: Route,
    call: Call,
  ) = logEvent(ConnectionEvent.ConnectStart(System.nanoTime(), route, call))

  override fun connectFailed(
    route: Route,
    call: Call,
    failure: IOException,
  ) = logEvent(
    ConnectionEvent.ConnectFailed(System.nanoTime(), route, call, failure),
  )

  override fun connectEnd(
    connection: Connection,
    route: Route,
    call: Call,

    assertThat(connectStart.proxy).isEqualTo(Proxy.NO_PROXY)
    val connectFailed = eventRecorder.removeUpToEvent<ConnectFailed>()
    assertThat(connectFailed.call).isSameInstanceAs(call)
    assertThat(connectFailed.inetSocketAddress).isEqualTo(expectedAddress)
    assertThat(connectFailed.protocol).isNull()
    assertThat(connectFailed.ioe).isNotNull()
  }

  @Test
  fun multipleConnectsForSingleCall() {

        .Builder()
        .build()
    val proxySelector: ProxySelector =
      object : ProxySelector() {
        override fun select(uri: URI): List<Proxy> = listOf()

        override fun connectFailed(
          uri: URI,
          socketAddress: SocketAddress,
          e: IOException,
        ) {}
      }

    val trustManager = get().platformTrustManager()

          override fun connectFailed(
            uri: URI?,
            sa: SocketAddress?,
            ioe: java.io.IOException?,
          ) {
          }
        }

      override val badValue: ProxySelector =
        object : ProxySelector() {
          override fun select(uri: URI?): MutableList<Proxy> = TODO()

          override fun connectFailed(
            uri: URI?,

        route.address.proxySelector.connectFailed(
          route.address.url.toUri(),
          route.proxy.address(),
          e,
        )
      }
      call.eventListener.connectFailed(call, route.socketAddress, route.proxy, null, e)
      connectionPool.connectionListener.connectFailed(route, call, e)
      return ConnectResult(plan = this, throwable = e)
    } finally {

        override fun connectEnd(
          call: Call,
          inetSocketAddress: InetSocketAddress,
          proxy: Proxy,
          protocol: Protocol?,
        ) = TODO()

        override fun connectFailed(
          call: Call,
          inetSocketAddress: InetSocketAddress,
          proxy: Proxy,
          protocol: Protocol?,
          ioe: IOException,
        ) = TODO()

      client
        .newBuilder()
        .proxySelector(
          object : ProxySelector() {
            override fun select(uri: URI): List<Proxy> = listOf(server.proxyAddress)

            override fun connectFailed(
              uri: URI,
              socketAddress: SocketAddress,
              e: IOException,
            ) {
            }
          },
        ).build()

	public fun callStart (Lokhttp3/Call;)V
	public fun canceled (Lokhttp3/Call;)V
	public fun connectEnd (Lokhttp3/Call;Ljava/net/InetSocketAddress;Ljava/net/Proxy;Lokhttp3/Protocol;)V
	public fun connectFailed (Lokhttp3/Call;Ljava/net/InetSocketAddress;Ljava/net/Proxy;Lokhttp3/Protocol;Ljava/io/IOException;)V
	public fun connectStart (Lokhttp3/Call;Ljava/net/InetSocketAddress;Ljava/net/Proxy;)V