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

    ImmutableList<E> createAsList() {
      return new RegularImmutableAsList<>(this, toArray());
    }

    // redeclare to help optimizers with b/310253115

  @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

    }

    @Override
    int copyIntoArray(@Nullable Object[] dst, int offset) {
      return asList().copyIntoArray(dst, offset);
    }

    @Override
    ImmutableList<Entry<K, V>> createAsList() {
      return new ImmutableList<Entry<K, V>>() {
        @Override
        public Entry<K, V> get(int index) {
          checkElementIndex(index, size);
          /*