abstract static class CachingAsList<E> extends ImmutableSet<E> {
    @LazyInit private transient ImmutableList<E> asList;

    @Override
    public ImmutableList<E> asList() {
      ImmutableList<E> result = asList;
      if (result == null) {
        return asList = createAsList();
      } else {
        return result;
      }
    }

    ImmutableList<E> createAsList() {

  abstract static class CachingAsList<E> extends ImmutableSet<E> {
    @LazyInit @RetainedWith @CheckForNull private transient ImmutableList<E> asList;

    @Override
    public ImmutableList<E> asList() {
      ImmutableList<E> result = asList;
      if (result == null) {
        return asList = createAsList();
      } else {
        return result;
      }
    }

    ImmutableList<E> createAsList() {

  @Override
  public ImmutableList<E> asList() {
    ImmutableList<E> result = asList;
    return (result == null) ? asList = createAsList() : result;
  }

  ImmutableList<E> createAsList() {
    return ImmutableList.asImmutableList(toArray());
  }

  /*
   * This class is used to serialize all ImmutableSet instances, except for

        }
        assert actual == ImmutableMap.copyOf(expected)
    }

    private static void assertImmutable(Map<String, String> map) {
        try {
            map.put("immutableTest", "value")
            Assert.fail('Map is not immutable')
        } catch (UnsupportedOperationException ignored) {
            // expected
        }
    }

    def "replace can modify property"() {

   * undocumented and subject to change.
   *
   * <p>Note that if {@code list} is a {@code List<String>}, then {@code ImmutableList.copyOf(list)}
   * returns an {@code ImmutableList<String>} containing each of the strings in {@code list}, while
   * {@code ImmutableList.of(list)} returns an {@code ImmutableList<List<String>>} containing one
   * element (the given list itself).
   *

   * undocumented and subject to change.
   *
   * <p>Note that if {@code list} is a {@code List<String>}, then {@code ImmutableList.copyOf(list)}
   * returns an {@code ImmutableList<String>} containing each of the strings in {@code list}, while
   * {@code ImmutableList.of(list)} returns an {@code ImmutableList<List<String>>} containing one
   * element (the given list itself).
   *

  @SuppressWarnings("unchecked")
  public static <E> ImmutableList<E> of() {
    return (ImmutableList<E>) RegularImmutableList.EMPTY;
  }

  public static <E> ImmutableList<E> of(E e1) {
    return new SingletonImmutableList<E>(checkNotNull(e1));
  }

  public static <E> ImmutableList<E> of(E e1, E e2) {
    return new RegularImmutableList<E>(ImmutableList.<E>nullCheckedList(e1, e2));
  }

    private final ModuleComponentIdentifier componentId;
    private final String name;
    private final ImmutableList<? extends ModuleComponentArtifactMetadata> artifacts;
    private final boolean transitive;
    private final boolean visible;
    private final ImmutableSet<String> hierarchy;
    private final ImmutableList<ExcludeMetadata> excludes;
    private final ImmutableAttributes attributes;

@GwtCompatible
public class MathTesting {
  static final ImmutableSet<RoundingMode> ALL_ROUNDING_MODES =
      ImmutableSet.copyOf(RoundingMode.values());

  static final ImmutableList<RoundingMode> ALL_SAFE_ROUNDING_MODES =
      ImmutableList.of(DOWN, UP, FLOOR, CEILING, HALF_EVEN, HALF_UP, HALF_DOWN);

  // Exponents to test for the pow() function.
  static final ImmutableList<Integer> EXPONENTS =
      ImmutableList.of(0, 1, 2, 3, 4, 7, 10, 15, 20, 25, 40, 70);

     * @return a list of realised variants
     */
    public static ImmutableList<AbstractRealisedModuleComponentResolveMetadata.ImmutableRealisedVariantImpl> realiseVariants(ModuleComponentResolveMetadata mutableMetadata, VariantMetadataRules variantMetadataRules, ImmutableList<? extends ComponentVariant> variants) {
        if (variants.isEmpty()) {
            return ImmutableList.of();
        }