Avoid split package warning on Quarkus

[jpraet]

2026-04-09 14:53:18,939 WARN  [io.quarkus.arc.deployment.SplitPackageProcessor] (build-14) Detected a split package usage which is considered a bad practice and should be avoided. Following packages were detected in multiple archives:
- "io.github.belgif.rest.problem.ee.jaxrs" found in [io.github.belgif.rest.problem:belgif-rest-problem-quarkus-core:0.21.0, io.github.belgif.rest.problem:belgif-rest-problem-quarkus-server:0.21.0]

I guess we will need to split up io.github.belgif.rest.problem.ee in io.github.belgif.rest.problem.ee.client and io.github.belgif.rest.problem.ee.server, similar to what we did for Spring Boot.

[jpraet]

I've moved the java EE classes to packages ee.core, ee.client and ee.server.

Note that there are also split packages across the spring modules.

e.g.

• https://github.com/belgif/rest-problem-java/tree/main/belgif-rest-problem-spring/src/main/java/io/github/belgif/rest/problem/spring/client
• https://github.com/belgif/rest-problem-java/tree/main/belgif-rest-problem-spring-boot-4-client-starter/src/main/java/io/github/belgif/rest/problem/spring/client
• https://github.com/belgif/rest-problem-java/tree/main/belgif-rest-problem-spring/src/main/java/io/github/belgif/rest/problem/spring/server
• https://github.com/belgif/rest-problem-java/tree/main/belgif-rest-problem-spring-boot-4-server-starter/src/main/java/io/github/belgif/rest/problem/spring/server

If we wanted to address those, we could maybe move the -spring-boot classes to io.github.belgif.rest.problem.spring.boot.client and io.github.belgif.rest.problem.spring.boot.server?

Spring doesn't really seem to care as much about it than Quarkus though.
But I think split packages are not allowed when using java modules, if we ever want to support that.

@pvdbosch thoughts?