assertThrows(
          UnsupportedOperationException.class,
          () -> cache.asMap().values().addAll(asList(entryOf(1, 1), entryOf(2, 2))));
    }
  }


  public void testEntrySet_clear() {
    for (LoadingCache<Object, Object> cache : caches()) {
      warmUp(cache, 0, 100);

      Set<Entry<Object, Object>> entrySet = cache.asMap().entrySet();
      entrySet.clear();