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) {

  }

  public void testCancelled() throws Exception {
    TrustedListenableFutureTask<Integer> task = TrustedListenableFutureTask.create(returning(2));
    assertFalse(task.isDone());
    task.cancel(false);
    assertTrue(task.isDone());
    assertTrue(task.isCancelled());
    assertFalse(task.wasInterrupted());
    assertThrows(CancellationException.class, () -> getDone(task));
    verifyThreadWasNotInterrupted();

    } 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());
    assertFalse(future.isCancelled());

    /**
     * Gets the size of this message.
     *
     * @return the size of this message
     */
    int size();

    /**
     * Creates a cancel request for this request.
     *
     * @return create cancel request
     */
    CommonServerMessageBlockRequest createCancel();

    /**
     * Checks if chaining is allowed with the next request.
     *

      super.addListener(listener, executor);
    }

    @CanIgnoreReturnValue
    @Override
    public final boolean cancel(boolean mayInterruptIfRunning) {
      return super.cancel(mayInterruptIfRunning);
    }
  }

  FluentFuture() {}

  /**
   * Converts the given {@code ListenableFuture} to an equivalent {@code FluentFuture}.
   *

          connectState = ConnectState.TLS_CONNECTED
          ConnectResult(this)
        }
      }
    }

    override fun handleSuccess() = connection

    override fun cancel() {
      events += "plan $id cancel"
      canceled = true
    }

    override fun retry(): FakePlan? {
      check(!retryTaken)
      retryTaken = true
      return retry
    }
  }

      ms -= 100L
    }

    if (ms > 0L || ns > 0) {
      Thread.sleep(ms, ns.toInt())
    }
  }

  override fun cancel() {
    delegate.cancel()
  }

  override fun close() {
    javaNetSocket.close()
  }

  fun awaitClosed() {
    closedLatch.await()
  }

    }

    /**
     * Cancel notification for a handle
     *
     * @param handle notification handle
     */
    private void cancelNotification(ChangeNotificationHandle handle) {
        CompletableFuture<Void> future = handle.getNotificationFuture();
        if (future != null && !future.isDone()) {
            future.cancel(true);
        }
    }

      // code should be unreachable with correctly implemented Futures.
      // Cancel this future and return.
      // At this point, inputFuture is cancelled and outputFuture doesn't exist, so the value of
      // mayInterruptIfRunning is irrelevant.
      cancel(false);
      return;
    } catch (ExecutionException e) {
      // Set the cause of the exception as this future's exception.

        this.scheduledDelegate = scheduledDelegate;
      }

      @Override
      public boolean cancel(boolean mayInterruptIfRunning) {
        boolean cancelled = super.cancel(mayInterruptIfRunning);
        if (cancelled) {
          // Unless it is cancelled, the delegate may continue being scheduled
          scheduledDelegate.cancel(mayInterruptIfRunning);

          /*