this.taskQueue.shutdown()
          } else {
            // When we request a graceful close also schedule a cancel of the web socket.
            val cancelAfterCloseMillis = messageOrClose.cancelAfterCloseMillis
            taskQueue.execute("$name cancel", MILLISECONDS.toNanos(cancelAfterCloseMillis)) {
              cancel()
            }
          }
        } else if (messageOrClose == null) {

    } 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 {

    assertFalse(future.isDone());

	r := rand.New(rand.NewSource(time.Now().UnixNano()))

	retryCtx, cancel := context.WithTimeout(ctx, timeout)
	defer cancel()

	for {
		select {
		case <-retryCtx.Done():
			// Caller context canceled or we timedout,
			// return false anyways for both situations.
			return false
		default:
			if lm.lock(id, source, isWriteLock) {

    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 }

import org.jline.utils.Colors;
import org.jline.utils.OSUtils;

import static org.apache.maven.cling.invoker.mvnenc.EncryptInvoker.BAD_OPERATION;
import static org.apache.maven.cling.invoker.mvnenc.EncryptInvoker.CANCELED;
import static org.apache.maven.cling.invoker.mvnenc.EncryptInvoker.OK;

/**
 * The "init" goal.
 */
@Singleton
@Named("init")
public class Init extends InteractiveGoalSupport {

     *
     * If the server does not respond to each ping with a pong within `interval`, this client will
     * assume that connectivity has been lost. When this happens on a web socket the connection is
     * canceled and its listener is [notified][WebSocketListener.onFailure]. When it happens on an
     * HTTP/2 connection the connection is closed and any calls it is carrying
     * [will fail with an IOException][java.io.IOException].

          },
        ).build()
    val call = client.newCall(Request(server.url("/a")))
    call.enqueue(callback)
    call.cancel()
    latch.countDown()
    callback
      .await(server.url("/a"))
      .assertFailure("canceled", "Canceled", "Socket closed", "Socket is closed")
  }

  @Test
  fun cancelAll() {
    val call = client.newCall(Request(server.url("/")))

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

    val interceptor =
      Interceptor { chain: Interceptor.Chain ->
        val call = chain.call()
        callRef.set(call)
        assertThat(call.isCanceled()).isFalse()
        call.cancel()
        assertThat(call.isCanceled()).isTrue()
        chain.proceed(chain.request())
      }
    client =
      client
        .newBuilder()
        .addInterceptor(interceptor)
        .build()

			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,
		)
	}
}