The assistant wrote this endpoint to list orders with their customer names. What's wrong?

@GetMapping("/orders")
public List<OrderView> list(@RequestParam int page) {
    List<Order> orders = orderRepository
        .findAll(PageRequest.of(page, 500))
        .getContent();
    return orders.stream()
        .map(o -> new OrderView(o.getId(),
                                o.getCustomer().getName(),
                                o.getTotal()))
        .toList();
}