public static void check(ProjectStructureElement element, ProjectStructureProblemsHolder problemsHolder) {
    for (ProjectStructureValidator validator : EP_NAME.getExtensions()) {
      if (validator.checkElement(element, problemsHolder)) {
        return;
      }
    }
    element.check(problemsHolder);
  }
public static void check(ProjectStructureElement element, ProjectStructureProblemsHolder problemsHolder)