*/
  enum Dummy {
    VALUE
  }

  @CanIgnoreReturnValue
  MapMaker setValueStrength(Strength strength) {
    checkState(valueStrength == null, "Value strength was already set to %s", valueStrength);
    valueStrength = checkNotNull(strength);
    if (strength != Strength.STRONG) {
      // STRONG could be used during deserialization.
      useCustomMap = true;
    }
    return this;

   */
  enum Dummy {
    VALUE
  }

  @CanIgnoreReturnValue
  MapMaker setValueStrength(Strength strength) {
    checkState(valueStrength == null, "Value strength was already set to %s", valueStrength);
    valueStrength = checkNotNull(strength);
    if (strength != Strength.STRONG) {
      // STRONG could be used during deserialization.
      useCustomMap = true;
    }
    return this;

    Preconditions.checkArgument(!this.keyStrengths.contains(Strength.SOFT));
    return this;
  }

  @CanIgnoreReturnValue
  CacheBuilderFactory withValueStrengths(Set<Strength> valueStrengths) {
    this.valueStrengths = new LinkedHashSet<>(valueStrengths);
    return this;
  }

  Iterable<CacheBuilder<Object, Object>> buildAllPermutations() {
    Iterable<List<Object>> combinations =
        buildCartesianProduct(

      checkArgument(value == null, "key %s does not take values", key);
      checkArgument(
          spec.valueStrength == null, "%s was already set to %s", key, spec.valueStrength);

      spec.valueStrength = strength;
    }
  }

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

    @Override

      checkArgument(value == null, "key %s does not take values", key);
      checkArgument(
          spec.valueStrength == null, "%s was already set to %s", key, spec.valueStrength);

      spec.valueStrength = strength;
    }
  }

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

    @Override

  Strength keyStrength() {
    return entryHelper.keyStrength();
  }

  @VisibleForTesting
  Strength valueStrength() {
    return entryHelper.valueStrength();
  }

  @VisibleForTesting
  Equivalence<Object> valueEquivalence() {
    return entryHelper.valueStrength().defaultEquivalence();
  }

  // ConcurrentMap methods

  @Override
  public boolean isEmpty() {
    /*

  Strength keyStrength() {
    return entryHelper.keyStrength();
  }

  @VisibleForTesting
  Strength valueStrength() {
    return entryHelper.valueStrength();
  }

  @VisibleForTesting
  Equivalence<Object> valueEquivalence() {
    return entryHelper.valueStrength().defaultEquivalence();
  }

  // ConcurrentMap methods

  @Override
  public boolean isEmpty() {
    /*

  @CanIgnoreReturnValue
  CacheBuilder<K, V> setValueStrength(Strength strength) {
    checkState(valueStrength == null, "Value strength was already set to %s", valueStrength);
    valueStrength = checkNotNull(strength);
    return this;
  }

  Strength getValueStrength() {
    return MoreObjects.firstNonNull(valueStrength, Strength.STRONG);
  }

  /**

  @CanIgnoreReturnValue
  CacheBuilder<K, V> setValueStrength(Strength strength) {
    checkState(valueStrength == null, "Value strength was already set to %s", valueStrength);
    valueStrength = checkNotNull(strength);
    return this;
  }

  Strength getValueStrength() {
    return MoreObjects.firstNonNull(valueStrength, Strength.STRONG);
  }

  /**

    assertWithMessage("valueEquivalence")
        .that(actual.valueEquivalence)
        .isEqualTo(expected.valueEquivalence);
    assertWithMessage("valueStrength").that(actual.valueStrength).isEqualTo(expected.valueStrength);
    assertWithMessage("statsCounterSupplier")
        .that(actual.statsCounterSupplier)
        .isEqualTo(expected.statsCounterSupplier);