private boolean isNotNull(@Nullable PsiModifierListOwner owner) {
        if (owner == null) return false;
        if (NullableNotNullManager.isNotNull(owner)) {
            return true;
        }
        PsiType type = getType(owner);
        if (type == null) return false;
        return isNotNull(type);
    }
private boolean isNotNull(@Nullable PsiModifierListOwner owner)