java如何在复杂模型中使用@valid注释

Question

我有一个复杂的模型请求类，我正在使用有效的注释。但它在子类中不起作用

cause=java.lang.NullPointerException detailMessage=HV000028: Unexpected exception during isValid call.

public class ChangeBlackListStatusRequest {

    @Valid
    List<CategoryChangeRequest> categoryChangeRequestList;
}

public class CategoryChangeRequest {

    @Valid
    List<Category> categoryList;

    @Valid
    List<Service> serviceList;

    @Valid
    List<Merchant> merchantList;

    @Valid
    List<Aggregator> aggregatorList;

}