code: @Deprecated
      public void addWatcher(File file, Listener watcher) {
          addWatcher(file.toPath(), watcher);
      }
docs: Start watching file path and notify watcher for updates on that file.
  
  @param file The file path to watch.
  @param watcher The watcher to be notified.
  @deprecated Use {@link #addWatcher(Path, Listener)}