*
 * @author Sven Mawson
 * @since 1.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class ForwardingFuture<V extends @Nullable Object> extends ForwardingObject
    implements Future<V> {
  /** Constructor for use by subclasses. */
  protected ForwardingFuture() {}

  @Override
  protected abstract Future<? extends V> delegate();

  @Override
  @CanIgnoreReturnValue