@SuppressWarnings("GoodTime") // should be a Duration
  private static final int DEFAULT_REFRESH_NANOS = 0;

  static final Supplier<? extends StatsCounter> NULL_STATS_COUNTER =
      Suppliers.ofInstance(
          new StatsCounter() {
            @Override
            public void recordHits(int count) {}

            @Override
            public void recordMisses(int count) {}

  @SuppressWarnings("GoodTime") // should be a Duration
  private static final int DEFAULT_REFRESH_NANOS = 0;

  static final Supplier<? extends StatsCounter> NULL_STATS_COUNTER =
      Suppliers.ofInstance(
          new StatsCounter() {
            @Override
            public void recordHits(int count) {}

            @Override
            public void recordMisses(int count) {}