Describe the bug

RESTEasy Reactive cannot serialize java.util.UUID.

IllegalState Form element 'org.acme.UserProfileDataApi$PostUserProfileDataMultipartForm.id' could not be converted to 'String' for REST Client interface 'org.acme.UserProfileDataApi'. A proper implementation of 'javax.ws.rs.ext.ParamConverter' needs to be returned by a 'javax.ws.rs.ext.ParamConverterProvider' that is registered with the client via the @RegisterProvider annotation on the REST Client interface.

I tried to add @PartType(MediaType.TEXT_PLAIN), but it made no difference.

Reproducer: https://github.com/hbelmiro/multipart-reactive-uuid-reproducer

Expected behavior

UUID attribute should be serialized to String.

Actual behavior

A serializer can't be found.

How to Reproduce?

Reproducer: https://github.com/hbelmiro/multipart-reactive-uuid-reproducer

Output of uname -a or ver

Linux fedora 6.1.11-200.fc37.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Feb 9 19:20:24 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

Output of java -version

openjdk version "19.0.2" 2023-01-17 OpenJDK Runtime Environment Homebrew (build 19.0.2) OpenJDK 64-Bit Server VM Homebrew (build 19.0.2, mixed mode, sharing)

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.16.3.Final

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

Apache Maven 3.8.6 (84538c9988a25aec085021c365c560670ad80f63)

Additional information

No response