return (result == null) ? asList = createAsList() : result;
  }

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

  /*
   * This class is used to serialize all ImmutableSet instances, except for
   * ImmutableEnumSet/ImmutableSortedSet, regardless of implementation type. It
   * captures their "logical contents" and they are reconstructed using public