@NotNull
  @Override
  public Collection<File> getGrammarFiles() {
    loadExtensions();
    //noinspection SSBasedInspection
    return grammarToExtensions.keySet().stream().map((path) -> new File(bundleFile, path)).collect(Collectors.toList());
  }
@NotNull
  @Override
  public Collection<File> getGrammarFiles()