return Maps.unmodifiableEntryIterator(delegate.entrySet().iterator());
  }

  @Override
  Spliterator<Entry<K, V>> entrySpliterator() {
    return CollectSpliterators.map(delegate.entrySet().spliterator(), Maps::unmodifiableEntry);
  }

  @Override
  public void forEach(BiConsumer<? super K, ? super V> action) {
    delegate.forEach(action);
  }

  @Override
  boolean isPartialView() {
    return false;
  }