Why junit-bom is apiElement/runtimeElement?

[koww]

Hello,

I am working on some dependency related work with Gradle 7.4.2, and when I try to exclude the boms based on the configuration, I noticed that junit-bom is resolved with the configuration runtimeElements while other boms are with platform-runtime.

org.junit:junit-bom:5.10.2;runtimeElements
org.testcontainers:testcontainers-bom:1.20.4;platform-runtime

My knowledge is not enough for me to tell why this difference at all since the build.gradle.kts under junit-bom does say it should be a platform and is published as a bom/javaPlatform.

Does anyone know why it is like this?

Below is the simple task(in Groovy) I did to output the dependencies with it's configuration:

task dep {
  doLast {
    configurations.testRuntimeClasspath.getResolvedConfiguration().getFirstLevelModuleDependencies().each {
      println it
    }
  }
}

[marcphilipp]

Could you please share a minimal reproducer? I think it depends on how the BOM is declared or gets pulled in.