CookieParam is not correctly handled by the default Resteasy Reactive converter

[sberyozkin]

Describe the bug

If I have @CookieParam("csrftoken") Cookie token then Cookie token will have its name set to the value of the csrftoken cookie and the value will remain empty.

I'm sorry if I got it wrong, but after tracing the request and debugging the test endpoint it does look like the case.

Expected behavior

Given @CookieParam("csrftoken") Cookie token, the Cookie name should be set to csrftoken, and value to the actual cookie value

Actual behavior

No response

How to Reproduce?

Check out #28383, go to integration-tests/csrf-reactive, do mvn test -Dtest=CsrfReactiveTest#testCsrfTokenMultipart, have a breakpoint in TestResource#postCsrfTokenMulltipart to confirm

Output of uname -a or ver

No response

Output of java -version

No response

GraalVM version (if different from Java)

No response

Quarkus version or git rev

No response

Build tool (ie. output of mvnw --version or gradlew --version)

No response

Additional information

No response

[quarkus-bot]

/cc @FroMage, @geoand, @stuartwdouglas

[geoand]

#28464 takes care of the issue. Seems weird that we never encountered a case of using Cookie in a JAX-RS method...

[sberyozkin]

Yeah, interesting, I suppose it shows manually dealing with cookies is done rarely

[geoand]

Very likely!

[FroMage]

Well, cookies work, but they're usually deserialised to String ;)