Generate Code fails if project dependencies do not include a main SourceSet

[AdlerFleurant]

Describe the bug

For Gradle, the task quarkusGenerateCode fails if a project dependency does not have a sourceSet called exactly main.

Expected behavior

Building a project should work even if a project dependency does not have a sourceSet called main.

Actual behavior

Gradle fails with the following error:

Execution failed for task ':quarkus:quarkusGenerateCode'.
> Could not resolve all dependencies for configuration ':quarkus:quarkusProdRuntimeClasspathConfigurationDeployment'.
   > SourceSet with name 'main' not found

How to Reproduce?

Reproducer: https://github.com/AdlerFleurant/quarkus-mpp-sample

Steps to reproduce the behavior:

1. Run ./gradlew quarkusGenerateCode on the reproducer project.

Output of uname -a or ver

Darwin xxxxxxxxxxxxx 21.6.0 Darwin Kernel Version 21.6.0: Wed Aug 10 14:28:23 PDT 2022; root:xnu-8020.141.5~2/RELEASE_ARM64_T6000 arm64

Output of java -version

openjdk version "17.0.2" 2022-01-18

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.12.2.Final

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

7.5.1

Additional information

No response

[quarkus-bot]

/cc @glefloch, @quarkusio/devtools