android/guava/src/com/google/common/cache/CacheStats.java
public CacheStats plus(CacheStats other) {
    return new CacheStats(
        hitCount + other.hitCount,
        missCount + other.missCount,
        loadSuccessCount + other.loadSuccessCount,
        loadExceptionCount + other.loadExceptionCount,
        totalLoadTime + other.totalLoadTime,
        evictionCount + other.evictionCount);
  }
public CacheStats plus(CacheStats other) {
    return new CacheStats(
        hitCount + other.hitCount,
        missCount + other.missCount,
        loadSuccessCount + other.loadSuccessCount,
        loadExceptionCount + other.loadExceptionCount,
        totalLoadTime + other.totalLoadTime,
        evictionCount + other.evictionCount);
  }
Returns a new {@code CacheStats} representing the sum of this {@code CacheStats} and {@code
other}.

@since 11.0