@Override
          protected Scheduler scheduler() {
            return newFixedDelaySchedule(Long.MAX_VALUE, Long.MAX_VALUE, SECONDS);
          }
        };
    service.startAsync().awaitRunning();
    assertThrows(TimeoutException.class, () -> service.firstBarrier.await(5, SECONDS));
    assertEquals(0, service.numIterations.get());
    service.stopAsync();
    service.awaitTerminated();
  }

          @Override
          protected Scheduler scheduler() {
            return newFixedDelaySchedule(Long.MAX_VALUE, Long.MAX_VALUE, SECONDS);
          }
        };
    service.startAsync().awaitRunning();
    assertThrows(TimeoutException.class, () -> service.firstBarrier.await(5, SECONDS));
    assertEquals(0, service.numIterations.get());
    service.stopAsync();
    service.awaitTerminated();
  }