throw EXCEPTION;
      }
      return outputFuture;
    }
  }

  public void testFutureGetThrowsFunctionException() throws Exception {
    inputFuture.set(EXCEPTION_DATA);
    listener.assertException(EXCEPTION);
  }

  public void testFutureGetThrowsCancellationIfInputCancelled() throws Exception {
    inputFuture.cancel(true); // argument is ignored

        val connection =
          Http2Connection
            .Builder(false, taskRunner)
            .socket(socket, socket.javaNetSocket.remoteSocketAddress.toString())
            .listener(http2SocketHandler)
            .build()
        connection.start()
        openConnections.add(connection)
        openClientSockets.remove(socket.javaNetSocket)
        return

 *
 * Steps to run in your own code
 *
 * 1. In your main method `WireSharkListenerFactory.register()`
 * 2. Create Listener factory `val eventListenerFactory = WireSharkListenerFactory(
logFile = File("/tmp/key.log"), tlsVersions = tlsVersions, launch = launch)`
 * 3. Register with `client.eventListenerFactory(eventListenerFactory)`

    val connection =
      Http2Connection
        .Builder(true, TaskRunner.INSTANCE)
        .socket(peer.openSocket().asBufferedSocket(), "peer")
        .pushObserver(Http2ConnectionTest.IGNORE)
        .listener(realConnection)
        .build()
    connection.start(sendConnectionPreface = false)

    // verify the peer received the ACK
    val ackFrame = peer.takeFrame()

 */
package okhttp3

import java.io.IOException
import java.net.InetAddress
import java.net.InetSocketAddress
import java.net.ProtocolException
import java.net.Proxy

/**
 * Listener for metrics events. Extend this class to monitor the quantity, size, and duration of
 * your application's HTTP calls.
 *
 * All start/connect/acquire events will eventually receive a matching end/release event, either

   * [requestBodyOpen], [responseBodyOpen], and [expectMoreExchanges].
   *
   * This will release the connection if it is still held.
   *
   * It will also notify the listener that the call completed; either successfully or
   * unsuccessfully.
   *
   * If the call was canceled or timed out, this will wrap [e] in an exception that provides that

proxy["Proxy on http://0.0.0.0:9999/api/v1/app"]
server["Server on http://127.0.0.1:8000/app"]

browser --> proxy
proxy --> server
```

/// tip

The IP `0.0.0.0` is commonly used to mean that the program listens on all the IPs available in that machine/server.

///

The docs UI would also need the OpenAPI schema to declare that this API `server` is located at `/api/v1` (behind the proxy). For example:

            }

            @Override
            public boolean isReady() {
                return true;
            }

            @Override
            public void setWriteListener(WriteListener listener) {
            }
        };

        lenient().when(response.getWriter()).thenReturn(printWriter);
        lenient().when(response.getOutputStream()).thenReturn(servletOutputStream);

 *  New: `EventListener.retryDecision()` is called each time a request fails with an `IOException`.
    It notifies your listener if OkHttp will retry.

 *  New: `EventListener.followUpDecision()` is called each time a response is received. It notifies
    your listener if OkHttp has decided to make a follow-up request. Some common follow-ups are
    authentication challenges and redirects.

        } finally {
            // MNG-4543
            cleanupTemporaryFiles(temporaryFiles);

            // Remove every checksum listener
            for (String id : CHECKSUM_IDS) {
                TransferListener checksumListener = checksums.get(id);
                if (checksumListener != null) {