}
  }

  /** Parse recordStats */
  static class RecordStatsParser implements ValueParser {

    @Override
    public void parse(CacheBuilderSpec spec, String key, @CheckForNull String value) {
      checkArgument(value == null, "recordStats does not take values");
      checkArgument(spec.recordStats == null, "recordStats already set");
      spec.recordStats = true;
    }
  }

    }
  }

  /** Parse recordStats */
  static class RecordStatsParser implements ValueParser {

    @Override
    public void parse(CacheBuilderSpec spec, String key, @CheckForNull String value) {
      checkArgument(value == null, "recordStats does not take values");
      checkArgument(spec.recordStats == null, "recordStats already set");
      spec.recordStats = true;
    }
  }

        new Function<CacheBuilder<Object, Object>, LoadingCache<Object, Object>>() {
          @Override
          public LoadingCache<Object, Object> apply(CacheBuilder<Object, Object> builder) {
            return builder.recordStats().build(identityLoader());
          }
        });
  }

  private CacheBuilderFactory cacheFactory() {
    // This is trickier than expected. We plan to put 15 values in each of these (WARMUP_MIN to

              computeCount.incrementAndGet();
              return key;
            }
          }
        };
    final LoadingCache<String, String> cache =
        CacheBuilder.newBuilder()
            .recordStats()
            .concurrencyLevel(2)
            .expireAfterWrite(100, MILLISECONDS)
            .removalListener(removalListener)
            .maximumSize(5000)
            .build(countingIdentityLoader);

   * cache operation.
   *
   * @return this {@code CacheBuilder} instance (for chaining)
   * @since 12.0 (previously, stats collection was automatic)
   */
  @CanIgnoreReturnValue
  public CacheBuilder<K, V> recordStats() {
    statsCounterSupplier = CACHE_STATS_COUNTER;
    return this;
  }

  boolean isRecordingStats() {
    return statsCounterSupplier == CACHE_STATS_COUNTER;
  }