code: private void loadAllAndReplaceExisting(Set<? extends K> keys) {
      int[] ignored = { 0 };
      Map<K, V> loaded = cacheLoader.get().loadAll(keys);
      for (Map.Entry<? extends K, ? extends V> entry : loaded.entrySet()) {
        putNoCopyOrAwait(entry.getKey(), entry.getValue(), /* publishToWriter */ false, ignored);
      }
    }
docs: Performs the bulk load where the existing entries are replace.