Future<Boolean> future = futureList.get(0);
    assertFalse(taskDone);
    assertTrue(future.isDone());
    assertThrows(CancellationException.class, () -> future.get());
  }

  public void testSameThreadScheduledExecutor() throws ExecutionException, InterruptedException {
    taskDone = false;
    Callable<Integer> task =
        new Callable<Integer>() {
          @Override
          public Integer call() {