private static Set<String> getUpdatedPlugins() {
    try {
      Path file = getUpdatedPluginsFile();
      if (Files.isRegularFile(file)) {
        List<String> list = Files.readAllLines(file);
        Files.delete(file);
        return new HashSet<>(list);
      }
    }
    catch (IOException e) {
      LOG.warn(e);
    }
    return new HashSet<>();
  }
private static Set<String> getUpdatedPlugins()