public static void languageLevelsChanged(@NotNull Project project) {
    if (!project.isDefault()) {
      project.getMessageBus().syncPublisher(LANGUAGE_LEVEL_CHANGED_TOPIC).onLanguageLevelsChanged();
      ProjectRootManager.getInstance(project).incModificationCount();
      JavaLanguageLevelPusher.pushLanguageLevel(project);
    }
  }
public static void languageLevelsChanged(@NotNull Project project)