public void forEachRemaining(Consumer<? super LongEntry<V>> action) {
          if (action == null) throw new NullPointerException();
          for (Node<V> p; (p = advance()) != null; )
              action.accept(new SimpleLongEntry<V>(p.key, p.val));
      }
public void forEachRemaining(Consumer<? super LongEntry<V>> action)