code: public void addPath(String path, Mode mode)
      {
          PathHolder pathHolder = new PathHolder(path, mode, 0);
          activePaths.put(path, pathHolder);
          schedule(pathHolder, reapingThresholdMs);
      }
docs: Add a path to be checked by the reaper. The path will be checked periodically
  until the reaper is closed, or until the point specified by the Mode
  
  @param path path to check
  @param mode reaping mode