private static @Nullable PsiMethod findMethodInSuperClass(PsiMethod method, PsiClass aSuper) {
    for (PsiMethod superMethod : method.findDeepestSuperMethods()) {
      PsiMethod overridden = aSuper.findMethodBySignature(superMethod, false);
      if (overridden != null) return overridden;
    }
    return null;
  }
private static @Nullable PsiMethod findMethodInSuperClass(PsiMethod method, PsiClass aSuper)