rivate static boolean validateNoConstructorsDefined(PsiClass psiClass, ProblemSink builder) {
    Collection<PsiMethod> psiMethods = PsiClassUtil.collectClassConstructorIntern(psiClass);
    if (!psiMethods.isEmpty()) {
      builder.addErrorMessage("inspection.message.utility.classes.cannot.have.declared.constructors");
      return false;
    }
    return true;
  }

rivate static boolean validateNoConstructorsDefined(PsiClass psiClass, ProblemSink builder) 