NoClassDefFound when generating classes from openapi specs

[oscarfh]

Describe the bug

I think this is somehow related to these issues, even though not exactly the same thing.
#2809
#16613

I tried to create a reproducer, but I did not manage to reproduce it in a smaller project.

Context:
I have a project that generates classes from an openapi specification into build/generated-resources/.... When the application starts, I can see al the generated resources in the list of banned elements.
When I call an endpoint which references such dependency, I get a NoClassDefFoundError because my resource is banned.

In my reproducer, I can see the resources being banned at the start of the application, but when the endpoint is called, the list of banned resources is empty.

Building the jar the running java -jar quarkus-run.jar runs perfectly.

Expected behavior

Generated resources should be "resolvable"

Actual behavior

NoClassDefFoundError is thrown when referencing generated resources

How to Reproduce?

I am trying to generate a reproducer.

Output of uname -a or ver

Linux 5.11.0-41-generic #45~20.04.1-Ubuntu

Output of java -version

openjdk version "11.0.13" 2021-10-19 OpenJDK Runtime Environment (build 11.0.13+8-Ubuntu-0ubuntu1.20.04) OpenJDK 64-Bit Server VM (build 11.0.13+8-Ubuntu-0ubuntu1.20.04, mixed mode, sharing)

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.4.2-final

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

gradle

Additional information

No response

Edit1: It seems that I am getting this exception from the "Quarkus Base Runtime ClassLoader", while, from my understanding, this class should be retrieved from the "Quarkus Runtime ClassLoader".

[quarkus-bot]

/cc @EricWittmann, @MikeEdgar, @phillip-kruger

[oscarfh]

Feel free to close. This was due to an split package issue.
I was able to fix the issue by excluding some transitive dependencies, but I did not solve my problem. I asked for support here, in case someone is interested (because it is for sure not a problem in Quarkus): https://stackoverflow.com/questions/70526299/noclassdeffounderror-on-quarkus-zig-file