Affects: 5.2.0

Hi all,

It looks like the onStatus custom error predicates are now evaluated in the inverted order compared to version 5.1.x

Using the WebClient this way:

webClient.
// ...
  .onStatus(
     HttpStatus.BAD_REQUEST::equals,
     res -> res.bodyToMono(Void.class).then(Mono.just(new SpecificException()))
  )
  .onStatus(
    HttpStatus::isError,
    res -> res.bodyToMono(Void.class).then(Mono.just(new GenericException())))
   )

// ...

Using 5.1.0 first onStatus was evaluated first, using version 5.2.0 with the same WebClient usage, last onStatus is evaluated first and behavior is significantly changed.

This behavior change was introduced in commit a9b3d95

If this onStatus evaluation order is not guaranteed, I think that this should be documented.

I can submit a documentation or a fix pull request.

Thomas