SpringBoot Spring webflux and validation starter don't work with nested generics

Spring version: 2.7.11

I found a problem with validation in Spring Webflux and spring-boot-starter-validation

When I try to validate a Mono object that has a nested Set, the validation doesn't work When I use the validation without nested generic it works

Example

Doesn't work:

public Mono<String> greetings(@Valid @RequestBody Mono<Set<GreetingsRequest>> request) {
  //do something
}

Works:

public Mono<String> greetings(@Valid @RequestBody Mono<GreetingsRequest> request) {
  //do something
}

Works:

public Mono<String> greetings(@Valid @RequestBody Set<GreetingsRequest> request) {
  //do something
}

Comment From: wilkinsona

Thanks for the report but it's Spring WebFlux, part of Spring Framework, that performs request body validation. Please open a Spring Framework issue, providing a minimal sample that reproduces the problem when you do so.