@Override
  public void replace(int key, IntSet value) {
    try {
      cache.invalidate(key);
      if (value == null || value.isEmpty()) {
        map.remove(key);
      }
      else {
        map.put(key, value);
      }
    }
    catch (IOException e) {
      throw new BuildDataCorruptedException(e);
    }
  }
@Override
  public void replace(int key, IntSet value)