GRPC library content type breaks Nexus artifact storage

[tmulle]

Describe the bug

This isn't directly a Quarkus bug, but the GRPC library it uses in relation to Nexus/Maven.

We use a corporate Nexus proxy of Maven central as well as our internal libraries.
When trying to build with GRPC libraries in Quarkus I got the following error which ultimately caused Nexus to not store the artifact in the repo.

Turning off strict meta/mime-type validation on the Nexus repo fixes it, but it looks like the mimetype of GRPC is incorrect?

I know most people probably don't use a Nexus Proxy and go straight to Maven Central, I just thought I'd bring it up to help those of us that do and save a day of troublshooting like it took me.

org.sonatype.nexus.repository.view.handlers.ExceptionHandler - Invalid content: GET /io/grpc/protoc-gen-grpc-java/1.65.1/protoc-gen-grpc-java-1.65.1-linux-aarch_64.exe: org.sonatype.nexus.repository.InvalidContentException: Detected content type [application/x-sharedlib], but expected [application/x-executable, application/x-dosexec, application/x-msdownload]: io/grpc/protoc-gen-grpc-java/1.65.1/protoc-gen-grpc-java-1.65.1-linux-aarch_64.exe

Expected behavior

Looks like Nexus thinks the mimetype should be one of: expected [application/x-executable, application/x-dosexec, application/x-msdownload]

Actual behavior

It Detected content type [application/x-sharedlib]

How to Reproduce?

Turn on Validation of mimetype for your repository storage for the Maven Central repo and try to build and you should see an error similiar to:

[ERROR] Failed to execute goal io.quarkus.platform:quarkus-maven-plugin:3.17.7:generate-code (default) on project code-with-quarkus-temporal: Quarkus code generation phase has failed: Failed to bootstrap application in NORMAL mode: Failed to resolve artifact io.grpc:protoc-gen-grpc-java:exe:linux-aarch_64:1.65.1: The following artifacts could not be resolved: io.grpc:protoc-gen-grpc-java:exe:linux-aarch_64:1.65.1 (absent): Could not find artifact io.grpc:protoc-gen-grpc-java:exe:linux-aarch_64:1.65.1 in nexus-mirror

Output of uname -a or ver

linux and osX

Output of java -version

No response

Quarkus version or git rev

3.17.5

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

maven

Additional information

No response

[quarkus-bot]

/cc @alesj (grpc), @cescoffier (grpc)