private static boolean hasOneOfMethodsDefined(@NotNull PsiClass psiClass) {
    final Collection<PsiMethod> classMethodsIntern = PsiClassUtil.collectClassMethodsIntern(psiClass);
    return PsiMethodUtil.hasMethodByName(classMethodsIntern, EQUALS_METHOD_NAME, 1) ||
           PsiMethodUtil.hasMethodByName(classMethodsIntern, HASH_CODE_METHOD_NAME, 0);
  }
private static boolean hasOneOfMethodsDefined(@NotNull PsiClass psiClass)