@SuppressWarnings("serial") static final class ValueIterator<K,V> extends Traverser<K,V,Object>
            implements Spliterator<V>, Enumeration<V> {
        ValueIterator(ConcurrentHashMapV8<K, V> map) { super(map); }
        ValueIterator(Traverser<K,V,Object> it) {
            super(it);