Extending abstract class does not expose parameter annotations

[couryrr]

I am on version 2.3.4.RELEASE and am seeing the same issue identified here #24127 except for abstract classes.

Here is the abstract class with the @RequestBody annotation:

Here is the extended class without the annotation:

Postman showing the data being sent in but returning nulls in the object:

If I move the @RequestBody annotation to the class that extends this works. Likewise if I make the abstract class an interface and do not provide the @RequestBody annotation it works as well.

[snicoll]

@couryrr sorry it took so long to look at this.

I can reproduce this behavior. Looking at org.springframework.web.method.HandlerMethod.HandlerMethodParameter, it creates its MethodParameter from the base class and I don't see what would be looking for the presence of metadata on the parent class. That's a bit at odds with method-level metadata that is indeed found.

@rstoyanchev wondering if that rings a bell?

[jhoeller]

As a follow-up to #30801 in 6.1, our common AnnotatedMethod exposes annotations from base classes as well in 6.1.3 now.