val subprojectRoots = platformsFolder.asFile.listFiles(File::isDirectory).plus(subprojectsFolder.asFile).plus(testingFolder.asFile)
        return subprojectRoots.map { it.listFiles(File::isDirectory).asList() }.flatten()
    }

    private
    fun generateSubprojects(): List<GradleSubproject> {
        return generateSubprojectsDirectories()
            .filter {
                File(it, "build.gradle.kts").exists() ||

            // TODO: This doesn't allow adoc files to be generated?
            task.from(extension.getUserManual().getRoot(), sub -> {
                sub.include("**/*.adoc");
                // Flatten adocs into a single directory
                sub.eachFile(fcd -> fcd.setRelativePath(RelativePath.parse(true, fcd.getName())));
            });

    private static List<Boolean> parametersNullabilityOf(CtBehavior behavior) {
        def annotations = behavior.parameterAnnotations as List<Object[]>
        annotations.collect { Object[] pAnn ->
            pAnn.flatten().any { isNullableCtAnnotation(it) }
        }
    }

    private static boolean hasNullableAnnotation(CtField field) {
        return NULLABLE_ANNOTATIONS.any { field.hasAnnotation(it) }
    }

* Be careful when using features introduced in Java 1.7 or later. Some parts of Gradle still need to run on Java 6.
* Normalize file paths in tests. The `org.gradle.util.internal.TextUtil` class has some useful functions for this purpose.

    return durationsPerTestProject
        .mapValues { (_, durations) -> durations.flatten().map { it.scenario } }
}

class EmptyTestProjectBucket(private val index: Int) : PerformanceTestBucket {
    override