cache.close()
    createNewCacheWithSize(10)
    set("a", "a", "a")
    set("b", "b", "b")
    set("c", "c", "c")
    set("d", "d", "d")
    set("e", "e", "e")
    cache["b"]!!.close() // 'B' is now least recently used.

    // Causing the size to grow to 12 should evict 'A'.
    set("f", "f", "f")
    // Causing the size to grow to 12 should evict 'C'.
    set("g", "g", "g")
    cache.flush()

   * set. The order in which these subsets appear in the outer set is undefined. Note that the power
   * set of the empty set is not the empty set, but a one-element set containing the empty set.
   *
   * <p>The returned set and its constituent sets use {@code equals} to decide whether two elements
   * are identical, even if the input set uses a different concept of equivalence.
   *

            allowed by the alias or set of aliases defined.
            """
        ),
    ] = None,
    serialization_alias: Annotated[
        Union[str, None],
        Doc(
            """
            'Blacklist' validation step. The vanilla parameter field will be the
            single one of the alias' or set of aliases' fields and all the other

  }

  @VisibleForTesting
  static <E extends @Nullable Object> Set<E> set(Set<E> set, @Nullable Object mutex) {
    return new SynchronizedSet<>(set, mutex);
  }

  static class SynchronizedSet<E extends @Nullable Object> extends SynchronizedCollection<E>
      implements Set<E> {

    SynchronizedSet(Set<E> delegate, @Nullable Object mutex) {
      super(delegate, mutex);
    }

    @Override

  }

  @VisibleForTesting
  static <E extends @Nullable Object> Set<E> set(Set<E> set, @Nullable Object mutex) {
    return new SynchronizedSet<>(set, mutex);
  }

  static class SynchronizedSet<E extends @Nullable Object> extends SynchronizedCollection<E>
      implements Set<E> {

    SynchronizedSet(Set<E> delegate, @Nullable Object mutex) {
      super(delegate, mutex);
    }

    @Override

        final Set<String> arrayFieldSet = getIndexAdminArrayFieldSet();
        final Set<String> dateFieldSet = getIndexAdminDateFieldSet();
        final Set<String> integerFieldSet = getIndexAdminIntegerFieldSet();
        final Set<String> longFieldSet = getIndexAdminLongFieldSet();
        final Set<String> floatFieldSet = getIndexAdminFloatFieldSet();

    private File file;

    private File basedir;

    private Path rootDirectory;

    private Set<Artifact> resolvedArtifacts;

    private ArtifactFilter artifactFilter;

    private Set<Artifact> artifacts;

    private Artifact parentArtifact;

    private Set<Artifact> pluginArtifacts;

    @Deprecated
    private List<ArtifactRepository> remoteArtifactRepositories;

   * @throws IllegalStateException if a maximum size or weight was already set
   */
  @CanIgnoreReturnValue
  public CacheBuilder<K, V> maximumSize(long maximumSize) {
    checkState(
        this.maximumSize == UNSET_INT, "maximum size was already set to %s", this.maximumSize);
    checkState(
        this.maximumWeight == UNSET_INT,
        "maximum weight was already set to %s",
        this.maximumWeight);

    return new CustomSetMultimap<>(map, factory);
  }

  private static final class CustomSetMultimap<
          K extends @Nullable Object, V extends @Nullable Object>
      extends AbstractSetMultimap<K, V> {
    transient Supplier<? extends Set<V>> factory;

    CustomSetMultimap(Map<K, Collection<V>> map, Supplier<? extends Set<V>> factory) {
      super(map);

   * @throws IllegalStateException if a maximum size or weight was already set
   */
  @CanIgnoreReturnValue
  public CacheBuilder<K, V> maximumSize(long maximumSize) {
    checkState(
        this.maximumSize == UNSET_INT, "maximum size was already set to %s", this.maximumSize);
    checkState(
        this.maximumWeight == UNSET_INT,
        "maximum weight was already set to %s",
        this.maximumWeight);