code: public static PlainChangesLogImpl createCopy(List<ItemState> items, PlainChangesLog originalLog)
     {
        return createCopy(items, originalLog.getPairId(), originalLog);
     }
docs: Creates a new instance of {@link PlainChangesLogImpl} by copying metadata from originalLog
  instance with Items provided.
  
  @param items
  @param originalLog
  @return