// Play it back.
    connect(peer, PushObserver.CANCEL, Http2Connection.Listener.REFUSE_INCOMING_STREAMS)

    // Verify the peer received what was expected.
    val rstStream = peer.takeFrame()
    assertThat(rstStream.type).isEqualTo(Http2.TYPE_RST_STREAM)
    assertThat(rstStream.streamId).isEqualTo(2)
    assertThat(rstStream.errorCode).isEqualTo(ErrorCode.CANCEL)
  }

  /**

            logger.error("ThumbnailGenerator terminated unexpectedly.", t);
            exitCode = Constants.EXIT_FAIL;
        } finally {
            if (systemMonitorTask != null) {
                systemMonitorTask.cancel();
            }
            destroyContainer();
        }

        System.exit(exitCode);
    }

    private static void destroyContainer() {
        TimeoutManager.getInstance().stop();

		if client == nil {
			continue
		}
		ng.Go(ctx, func() error {
			// Give 15 seconds to each remote call.
			// Errors are logged but not returned.
			ctx, cancel := context.WithTimeout(ctx, 15*time.Second)
			defer cancel()
			data, err := client.DownloadProfileData(ctx)
			if err != nil {
				reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", client.host.String())

    consumer.accept(new ValueAndCloser<C>(closingFuture));
  }

  /**
   * Attempts to cancel execution of this step. This attempt will fail if the step has already
   * completed, has already been cancelled, or could not be cancelled for some other reason. If
   * successful, and this step has not started when {@code cancel} is called, this step should never
   * run.
   *

        .build(),
    )
    val call =
      client.newCallWithListener(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    call.cancel()
    call.cancel()
    assertThat(eventRecorder.recordedEventTypes()).containsExactly(Canceled::class)
  }

  private fun assertSuccessfulEventOrder(
    responseMatcher: Matcher<Response?>?,

   * State#RUNNING}. Services that need to cancel startup work can override {@link #doCancelStart}.
   */
  @ForOverride
  protected abstract void doStop();

  /**
   * This method is called by {@link #stopAsync} when the service is still starting (i.e. {@link
   * #startAsync} has been called but {@link #notifyStarted} has not). Subclasses can override the

          """
          |data: hey
          |
          |
          """.trimMargin(),
        ).setHeader("content-type", "text/event-stream")
        .build(),
    )
    listener.enqueueCancel() // Will cancel in onOpen().
    newEventSource()
    listener.assertOpen()
    listener.assertFailure("canceled")
  }

  @Test
  fun badContentType() {
    server.enqueue(
      MockResponse
        .Builder()

        } finally {
            if (accessTimeout != null) {
                accessTimeoutTarget.stop();
                if (!accessTimeoutTask.isCanceled()) {
                    accessTimeoutTask.cancel();
                }
            }
        }
        return data;
    }

    /**
     * Sets the URL of the API endpoint.
     * @param url The URL to set.
     */

    "ThreadPriorityCheck", // TODO: b/175898629 - Consider onSpinWait.
  })
  private void waitForInterrupt(Thread currentThread) {
    /*
     * If someone called cancel(true), it is possible that the interrupted bit hasn't been set yet.
     * Wait for the interrupting thread to set DONE. (See interruptTask().) We want to wait so that

	OpMuxConnectError

	// OpDisconnectClientMux instructs a client to disconnect a mux
	OpDisconnectClientMux

	// OpDisconnectServerMux instructs a server to disconnect (cancel) a server mux
	OpDisconnectServerMux

	// OpMuxClientMsg contains a message to a client Mux
	OpMuxClientMsg

	// OpMuxServerMsg contains a message to a server Mux
	OpMuxServerMsg