@SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
    Future<?> possiblyIgnoredError =
        testExecutor.scheduleWithFixedDelay(() -> {}, 100, 10, MINUTES);
    mock.assertLastMethodCalled("scheduleWithFixedDelay", 100, 10, MINUTES);

    @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored

    assertThat(reloadCount.get()).isEqualTo(0);
    assertThat(loadAllCount.get()).isEqualTo(0);

    Object unused1 = baseLoader.load(new Object());
    @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
    Future<?> possiblyIgnoredError = baseLoader.reload(new Object(), new Object());
    Map<Object, Object> unused2 = baseLoader.loadAll(ImmutableList.of(new Object()));
    assertThat(loadCount.get()).isEqualTo(1);

    @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
    Future<?> possiblyIgnoredError =
        testExecutor.scheduleWithFixedDelay(() -> {}, 100, 10, MINUTES);
    mock.assertLastMethodCalled("scheduleWithFixedDelay", 100, 10, MINUTES);

    @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored

      throw new SkipThisScenarioException();
    }
  }

  // This exclusion doesn't exclude the TOMBSTONE objects we set. So 'done' NEW futures will look
  // larger than they are.
  @SuppressWarnings("FutureReturnValueIgnored")
  @Footprint(exclude = {Runnable.class, Executor.class, Thread.class, Exception.class})
  public Object measureSize() {
    for (Thread thread : blockedThreads) {
      thread.interrupt();
    }

      CountDownLatch doneLatch = new CountDownLatch(numberOfThreads);
      for (int i = numberOfThreads; i > 0; i--) {
        @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
        Future<?> possiblyIgnoredError =
            executorService.submit(
                () -> {
                  startLatch.countDown();
                  startLatch.await();

      CountDownLatch doneLatch = new CountDownLatch(numberOfThreads);
      for (int i = numberOfThreads; i > 0; i--) {
        @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
        Future<?> possiblyIgnoredError =
            executorService.submit(
                () -> {
                  startLatch.countDown();
                  startLatch.await();