description = "Compile all production source code, usually only main and testFixtures."
        val compileTasks = project.tasks.matching {
            // Currently, we compile everything since the Groovy compiler is not deterministic enough.
            (it is JavaCompile || it is GroovyCompile)
        }
        dependsOn(compileTasks)
    }
}

fun Test.jvmVersionForTest(): JavaLanguageVersion {