code: private void mergeResponsesSortedSet(SortedSet<Object> originalList, SortedSet<Object> shardList) {
  		for (Object item : shardList) {
  			originalList.add(item);
  		}
  	}
docs: Merge responses sorted set.
  
  @param originalList
  the original list
  @param shardList
  the shard list