assertThat(stats.loadSuccessCount()).isEqualTo(0);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);
    assertThat(stats.hitCount()).isEqualTo(0);

    Object key = new Object();
    assertThat(cache.get(key)).isSameInstanceAs(key);
    stats = cache.stats();
    assertThat(stats.missCount()).isEqualTo(1);
    assertThat(stats.loadSuccessCount()).isEqualTo(1);

    assertThat(stats.loadSuccessCount()).isEqualTo(0);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);
    assertThat(stats.hitCount()).isEqualTo(0);

    Object key = new Object();
    assertThat(cache.get(key)).isSameInstanceAs(key);
    stats = cache.stats();
    assertThat(stats.missCount()).isEqualTo(1);
    assertThat(stats.loadSuccessCount()).isEqualTo(1);

   * on calls to {@code getIfPresent}.
   */
  public long loadExceptionCount() {
    return loadExceptionCount;
  }

  /**
   * Returns the ratio of cache loading attempts which threw exceptions. This is defined as {@code
   * loadExceptionCount / (loadSuccessCount + loadExceptionCount)}, or {@code 0.0} when {@code
   * loadSuccessCount + loadExceptionCount == 0}.
   *

   * on calls to {@code getIfPresent}.
   */
  public long loadExceptionCount() {
    return loadExceptionCount;
  }

  /**
   * Returns the ratio of cache loading attempts which threw exceptions. This is defined as {@code
   * loadExceptionCount / (loadSuccessCount + loadExceptionCount)}, or {@code 0.0} when {@code
   * loadSuccessCount + loadExceptionCount == 0}.
   *

    public void incrementBy(StatsCounter other) {
      CacheStats otherStats = other.snapshot();
      hitCount.add(otherStats.hitCount());
      missCount.add(otherStats.missCount());
      loadSuccessCount.add(otherStats.loadSuccessCount());
      loadExceptionCount.add(otherStats.loadExceptionCount());
      totalLoadTime.add(otherStats.totalLoadTime());
      evictionCount.add(otherStats.evictionCount());
    }
  }

    public void incrementBy(StatsCounter other) {
      CacheStats otherStats = other.snapshot();
      hitCount.add(otherStats.hitCount());
      missCount.add(otherStats.missCount());
      loadSuccessCount.add(otherStats.loadSuccessCount());
      loadExceptionCount.add(otherStats.loadExceptionCount());
      totalLoadTime.add(otherStats.totalLoadTime());
      evictionCount.add(otherStats.evictionCount());
    }
  }

    assertThat(stats.hitCount()).isEqualTo(0);
    assertThat(stats.hitRate()).isEqualTo(1.0);
    assertThat(stats.missCount()).isEqualTo(0);
    assertThat(stats.missRate()).isEqualTo(0.0);
    assertThat(stats.loadSuccessCount()).isEqualTo(0);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);
    assertThat(stats.loadCount()).isEqualTo(0);
    assertThat(stats.totalLoadTime()).isEqualTo(0);

          .isEqualTo(notification.getKey());
    }

    CacheStats stats = cache.stats();
    assertThat(stats.evictionCount()).isEqualTo(removalListener.size());
    assertThat(stats.loadSuccessCount()).isEqualTo(computeCount.get());
    assertThat(stats.loadExceptionCount()).isEqualTo(exceptionCount.get() + computeNullCount.get());
    // each computed value is still in the cache, or was passed to the removal listener