Spring - Intercepting bean creation and injecting custom proxy

Question

I have a @Controller with @Autowired fields and handler methods that I want to annotate with custom annotations.

For example,

Answer 1

InstantiationAwareBeanPostProcessor.postProcessBeforeInstantiation will short-circuit the bean creation approach. The only processing applied is postProcessAfterInitialization. Which means that, autowiring won't happen because AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues will never be called. Therefore, you should manually inject or autowire the properties of the proxied beans in postProcessAfterInitialization method.

Question: Does moving the proxying logic in postProcessAfterInitialization method have an impact to your business requirements? If none, I suggest you do the proxying there.

FYI: If you are not building an API, do the annotation approach as suggested by @nicholas.hauschild.