Hi,

The configuration productionRuntimeClasspath provided by the spring boot gradle plugin contains the sources jar of the dependency io.github.oshai:kotlin-logging-jvm:5.1.0 instead of the "real" jar.

All other third party jars are correct, only the kotlin-logging-jvm jar seems to be affected. I tested with different versions down to 4.0.0 all with the same result.

I tested with Spring Boot 3.1.5 and 3.2.0-RC2 on Mac M1 macOs 14.1.

You find a demo attached to this issue.
I created a task which copies the dependencies of productionRuntimeClasspath and runtimeClasspath into seperate folders. You can use ./gradlew copyAllDeps to reproduce on attached example project.

In build/allLibs/productionRuntime you find the sources jar of kotlin-logging-jvm and in build/allLibs/runtime everything is as expected.

logging-source.zip

Regards
Christian