Spring About register "BeanPostProcessor" use"BeanFactoryPostProcessor"

When I use "BeanFactoryPostProcessor" to register "BeanPostProcessor" and at the same time use AutoConfiguration to wire up my defined "BeanFactoryPostProcessor", I found that my "BeanPostProcessor" execution order is after "@PostConstruct", I am curious why, and please what is good way to deal with

The key code is as follows JDK17\SpringBoot3.0.0-M3

@RequiredArgsConstructor
public class MapstructFactory implements BeanPostProcessor {

    private final MapstructRegistry registry;

    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        if (bean instanceof Converter) {
            registry.addConverter((Converter<?, ?>) bean);
        }
        return BeanPostProcessor.super.postProcessBeforeInitialization(bean, beanName);
    }

}

@RequiredArgsConstructor
public class MapstructFactoryRegister implements BeanFactoryPostProcessor {

    private final MapstructRegistry registry;

    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
         beanFactory.addBeanPostProcessor(new MapstructFactory(registry));
    }

}

@AutoConfiguration
public class MapstructAutoConfiguration {

    @Bean
    public MapstructFactoryRegister mapstructFactoryRegister(MapstructRegistry registry) {
        return new MapstructFactoryRegister(registry);
    }
}

Comment From: snicoll

Thanks for getting in touch, but it feels like this is a question that would be better suited to Stack Overflow. As mentioned in the guidelines for contributing, we prefer to use the issue tracker only for bugs and enhancements. Feel free to update this issue with a link to the re-posted question (so that other people can find it) or add some more details if you feel this is a genuine bug.