'matching(patternSet)',
            'matching(patternSet).filter { it.file }',
            'matching(patternSet).asFileTree.filter { it.file }',
            'filter { it.path.endsWith "ok" }.asFileTree',
            'filter { it.file }.asFileTree.matching(patternSet)',
        ]
    }

                false
            }
            fileCollection is FilteredFileTree -> {
                when {
                    // Optimize a common case, where fileCollection.asFileTree.matching(emptyPatterns) is used,
                    // e.g. in SourceTask and in CopySpec.
                    // Skip applying the filters to the tree
                    fileCollection.patterns.isEmpty -> {

    get() = get().isEmpty


/**
 * See [Configuration.getAsFileTree].
 */
@Deprecated(deprecationMessage, replaceWith = ReplaceWith("get().asFileTree"), level = DeprecationLevel.HIDDEN)
val <T : Configuration> NamedDomainObjectProvider<T>.asFileTree: FileTree
    get() = get().asFileTree


/**
 * See [Configuration.getResolutionStrategy].
 */

}


/**
 * Clean up daemon log files produced in integration tests.
 */
fun FileSystemOperations.removeDaemonLogFiles(dir: Directory) {
    if (dir.asFile.isDirectory) {
        val daemonLogFiles = dir.asFileTree.matching {
            include("**/*.log")
        }
        delete { delete(daemonLogFiles) }
    }

    components {
        withModule<CodeNarcRule>("org.codenarc:CodeNarc") {
            params(groovyVersion)
        }
    }
}

fun configFile(fileName: String) = resources.text.fromFile(rules.asFileTree.filter { it.name == fileName })

checkstyle {
    toolVersion = "8.12"
    config = configFile("checkstyle.xml")
    val projectDirectory = layout.projectDirectory
    configDirectory = rules.elements.map {

                .replaceAll("[^a-zA-Z0-9\\-]", "_")
                .toLowerCase(Locale.ROOT) + ".2";
    }

    private File unpack(File jdkArchive) {
        final FileTree fileTree = asFileTree(jdkArchive);
        String unpackFolderName = getNameWithoutExtension(jdkArchive);
        final File unpackFolder = temporaryFileProvider.createTemporaryDirectory(unpackFolderName, null, "jdks");

                writeText(readText().replace("\\Q<lastUpdated>\\E\\d+\\Q</lastUpdated>\\E".toRegex(), "<lastUpdated>${Year.now().value}0101000000</lastUpdated>"))
            }
            localRepository.get().asFileTree.matching { include("**/*.module") }.forEach {
                val content = it.readText()
                    .replace("\"buildId\":\\s+\"\\w+\"".toRegex(), "\"buildId\": \"\"")

    doFirst {
        // On daemon crash, read-only cache tests can leave read-only files around.
        // clean now takes care of those files as well
        testFiles.get().asFileTree.matching {
            include("**/read-only-cache/**")
        }.visit { this.file.setWritable(true) }
    }

    def copiesFiles() {
        def fileCollection = Mock(ConfigurableFileCollection)
        def fileTree = Mock(FileTreeInternal)
        fileCollectionFactory.configurableFiles() >> fileCollection
        fileCollection.asFileTree >> fileTree
        fileTree.matching(_) >> fileTree
        resolver.resolve('dir') >> tmpDir.getTestDirectory()

        when:
        def result = fileOperations.copy { from 'file'; into 'dir' }

                    inputs.dir sources skipWhenEmpty()
                    outputs.dir "${outputDir}"
                    def outputDir = file("${outputDir}")
                    def sourceTree = files(sources).asFileTree
                    doLast {
                        outputDir.mkdirs()
                        sourceTree.visit { details ->
                            if (!details.directory) {