}

    private
    fun loaderClassBytesIndexFor(loader: ClassLoader): ClassBytesIndex = { classFilePath ->
        loader.getResource(classFilePath)?.let {
            { loader.getResourceAsStream(classFilePath).use { it!!.readBytes() } }
        }
    }

    private
    fun openJarFile(file: File) =
        openJars.computeIfAbsent(file, ::JarFile)

            prefixPath.substringAfterLast("/")
        ).toFile()

    private
    fun File.withDirectory(path: String): File =
        resolve(path).apply {
            mkdirs()
        }

    private
    fun File.withSettings(text: String = ""): File =
        withFile("settings.gradle.kts", text)

    private
    fun File.withBuildScript(text: String = ""): File =
        withFile("build.gradle.kts", text)

	return errors.Is(err, syscall.EXDEV)
}

// Check if given error corresponds to too many open files
func isSysErrTooManyFiles(err error) bool {
	return errors.Is(err, syscall.ENFILE) || errors.Is(err, syscall.EMFILE)
}

func osIsNotExist(err error) bool {
	return errors.Is(err, os.ErrNotExist)
}

func osIsPermission(err error) bool {

import java.io.File


@EnabledIfEnvironmentVariable(named = "CI", matches = ".*", disabledReason = "Tests rely on setup conditional on CI in gradlebuild.ci-reporting plugin running first, these test should only run if CI env var is present (it's value doesn't matter)")
class TestFilesCleanupServiceTest {
    @TempDir
    lateinit var projectDir: File

    private
    fun File.mkdirsAndWriteText(text: String) {

        return subprojectRoots.map { it.listFiles(File::isDirectory).asList() }.flatten()
    }

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

        }
    }

    private
    fun Task.findTraceJson(): List<File> {
        if (this !is Test) {
            return emptyList()
        }
        // e.g. build/test-results/embeddedIntegTest/trace.json
        return listOf(project.layout.buildDirectory.file("test-results/$name/trace.json").get().asFile)
    }

    private
    fun Task.genericHtmlReports() = when (this) {

private
fun scriptsCacheDirsUnder(cacheDir: File) =
    scriptCacheDirNames
        .map { File(cacheDir, it) }
        .filter { it.isDirectory }


/**
 * Clean up cache files for older versions that aren't multi-process safe.
 */
fun FileSystemOperations.removeDodgyCacheFiles(dir: Directory) {
    if (dir.asFile.isDirectory) {
        for (cacheDir in dir.asFile.listFiles()) {

        provider.parse(sourceFile.get().asFile)
        transformDocument(provider.document)
        provider.write(destFile.get().asFile)
    }

    private def transformDocument(Document mainDocbookTemplate) {
        ClassMetaDataRepository<ClassMetaData> classRepository = new SimpleClassMetaDataRepository<ClassMetaData>()
        classRepository.load(classMetaDataFile.get().asFile)

    }
}

fun Task.customReports(): List<File> = when (this) {
    is ValidatePlugins -> listOf(outputFile.get().asFile)
    is FindBrokenInternalLinks -> listOf(reportFile.get().asFile)
    is DistributionTest -> listOf(
        gradleInstallationForTest.gradleUserHomeDir.dir("test-kit-daemon").get().asFile,
        gradleInstallationForTest.gradleUserHomeDir.dir("kotlin-compiler-daemon").get().asFile,

            throws PluginDescriptorParsingException, InvalidPluginDescriptorException {
        PluginDescriptor pluginDescriptor = null;

        File pluginFile = pluginArtifact.getFile();

        try {
            if (pluginFile.isFile()) {
                try (JarFile pluginJar = new JarFile(pluginFile, false)) {
                    ZipEntry pluginDescriptorEntry = pluginJar.getEntry(getPluginDescriptorLocation());