Reported in https://github.com/google/guava/issues/3086#issuecomment-378523615

Needs a fix like https://github.com/google/guava/commit/8f22dbc8ea0c1abdf044846057f6df8201ee9961
* value. Note that multiple threads can concurrently load values for distinct keys.
   *
   * <p>This method does not alter the state of this {@code CacheBuilder} instance, so it can be
   * invoked again to create multiple independent caches.
   *
   * @param loader the cache loader used to obtain new values
   * @return a cache having the requested features
   */
  public <K1 extends K, V1 extends V> LoadingCache<K1, V1> build(
      CacheLoader<? super K1, V1> loader) {
    checkWeightWithWeigher();
    return new LocalCache.LocalLoadingCache<>(this, loader);
  }
  /**
   * Builds a cache which does not automatically load values when keys are requested.
   *
   * <p>Consider {@link #build(CacheLoader)} instead, if it is feasible to implement a {@code
   * CacheLoader}.
   *
   * <p>This method does not alter the state of this {@code CacheBuilder} instance, so it can be
   * invoked again to create multiple independent caches.
   *
   * @return a cache having the requested features
   * @since 11.0
   */
  public <K1 extends K, V1 extends V> Cache<K1, V1> build() {
    checkWeightWithWeigher();
    checkNonLoadingCache();
    return new LocalCache.LocalManualCache<>(this);
  }