/**
 * GWT emulated version of {@link RegularImmutableList}.
 *
 * @author Hayward Chan
 */
@ElementTypesAreNonnullByDefault
class RegularImmutableList<E> extends ForwardingImmutableList<E> {

  static final ImmutableList<Object> EMPTY = new RegularImmutableList<Object>(emptyList());

  private final List<E> delegate;
  @Nullable E forSerialization;

  RegularImmutableList(List<E> delegate) {