final TestCondition testCondition = create();

      ScheduledExecutorService scheduledPool = Executors.newScheduledThreadPool(1);
      // If signal() fails somehow, we should see a failed test, even without looking at the Future.
      Future<?> unused =
          scheduledPool.schedule(
              new Runnable() {
                @Override
                public void run() {
                  testCondition.signal();

      final TestCondition testCondition = create();

      ScheduledExecutorService scheduledPool = Executors.newScheduledThreadPool(1);
      // If signal() fails somehow, we should see a failed test, even without looking at the Future.
      Future<?> unused =
          scheduledPool.schedule(
              new Runnable() {
                @Override
                public void run() {
                  testCondition.signal();