docs: public Map<K, V> getAll(final Iterable<? extends K> _inputKeys) {
      Map<K, ExaminationEntry<K, V>> map = new HashMap<K, ExaminationEntry<K, V>>();
      for (K k : _inputKeys) {
        Entry<K,V> e = getEntryInternal(k);
        if (e != null) {
          map.put(extractKeyObj(e), ReadOnlyCacheEntry.of(e));
        }
      }
      return convertValueMap(map);
    }