client.dispatcher.executorService.shutdownNow()

    val exception = callFailure.get(5, TimeUnit.SECONDS)
    assertThat(exception.message)
      .isNotNull()
      .startsWith("canceled due to")
    assertThat(exception).isInstanceOf<IOException>()
    assertThat(exception.cause)
      .isNotNull()
      .matchesPredicate { it is InterruptedException || it is RejectedExecutionException }

			api,
		)
	}

	for api, value := range httpStats.TotalS3Canceled.APIStats {
		ch <- prometheus.MustNewConstMetric(
			prometheus.NewDesc(
				prometheus.BuildFQName(s3Namespace, "canceled", "total"),
				"Total number of client canceled s3 request in current MinIO server instance",
				[]string{"api"}, nil),
			prometheus.CounterValue,
			float64(value),
			api,
		)
	}
}

      .await(server.url("/a"))
      .assertFailure("canceled", "Canceled", "Socket closed", "Socket is closed")
  }

  @Test
  fun cancelAll() {
    val call = client.newCall(Request(server.url("/")))
    call.enqueue(callback)
    client.dispatcher.cancelAll()
    callback
      .await(server.url("/"))
      .assertFailure("canceled", "Canceled", "Socket closed", "Socket is closed")
  }

  @Test

  fun networkInterceptorThrowsRuntimeExceptionAsynchronous() {
    interceptorThrowsRuntimeExceptionAsynchronous(true)
  }

  /**
   * When an interceptor throws an unexpected exception, asynchronous calls are canceled. The
   * exception goes to the uncaught exception handler.
   */
  private fun interceptorThrowsRuntimeExceptionAsynchronous(network: Boolean) {
    val boom = RuntimeException("boom!")

      fail("Should have timed out trying to get the value.");
    } catch (TimeoutException expected) {
    } finally {
      latch.countDown();
    }
  }

  /**
   * Tests that a canceled future throws a cancellation exception.
   *
   * <p>This method checks the cancel, isCancelled, and isDone methods.
   */
  public void testCanceledFutureThrowsCancellation() throws Exception {

 *
 *  * For asynchronous calls made with [Call.enqueue], an [IOException] is propagated to the caller
 *    indicating that the call was canceled. The interceptor's exception is delivered to the current
 *    thread's [uncaught exception handler][Thread.UncaughtExceptionHandler]. By default this

		// Remove failed listings after 5 minutes.
		return time.Since(cache.lastUpdate) > 5*time.Minute
	}
	return true
}

// keepAlive will continuously update lastHandout until ctx is canceled.
func (m metacache) keepAlive(ctx context.Context, rpc *peerRESTClient) {
	// we intentionally operate on a copy of m, so we can update without locks.
	t := time.NewTicker(metacacheMaxClientWait / 10)
	defer t.Stop()

                        throw failure.get();
                    }
                } catch (UserInterruptException e) {
                    // Ignore
                    // return CANCELED;
                } catch (EndOfFileException e) {
                    return OK;
                } catch (SystemRegistryImpl.UnknownCommandException e) {
                    context.writer.accept(context.invokerRequest

        ).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()
        .body(
          """
          |data: hey
          |
          |

    override val call: Call,
    val ioe: IOException,
  ) : CallEvent() {
    override fun closes(event: CallEvent): Boolean = event is CallStart && call == event.call
  }

  data class Canceled(
    override val timestampNs: Long,
    override val call: Call,
  ) : CallEvent()

  data class RequestHeadersStart(
    override val timestampNs: Long,
    override val call: Call,
  ) : CallEvent()