docs: private void ensureSorted() {
      if (sorted) {
        return;
      }
  
      ensureCapacity();
  
      DataUtils.sort(byBlockHash);
      for (int i = 0; i < size; i++) {
        resourceIdsIndex[i] = i;
      }
      DataUtils.sort(byResourceId);
  
      sorted = true;
    }