class StoppableCountDownLatch {

  long retryIntervalNanos() {
    return retryIntervalNanos;
  }

  public  StoppableCountDownLatch(final CancelCriterion stopper, final int count);
    StoppableCountDownLatch(final CancelCriterion stopper, final int count,
      final long retryIntervalNanos, final NanoTimer nanoTimer);

}