private List<String> listAllFiles(File file) {
        return Files.find(file.toPath(), 99, { path, attributes -> attributes.isRegularFile() })
            .collect { file.toPath().relativize(it).toString().replace("\\", "/") }
            .toSorted()
    }

    private boolean hasOnlyDirectories(File file) {
        try (Stream<Path> stream = Files.walk(file.toPath())) {
            return stream.allMatch { Files.isDirectory(it) }
        }

        addSigningProperties()
        createJarTaskOutputFile('jar')

        when:
        Sign signTask = signing.sign(jar).first()

        then:
        def outputPath = jar.outputs.files.singleFile.toPath().toAbsolutePath().toString()
        signTask.signaturesByKey.containsKey(outputPath)
        signTask.signaturesByKey.get(outputPath) == signTask.singleSignature
    }

	handleFile := func(filename string, d fs.DirEntry, err error) error {
		if err != nil {
			t.Error(err)
			return nil
		}
		// don't descend into testdata directories
		if isGoFile(d) && !strings.Contains(filepath.ToSlash(filename), "/testdata/") {
			filenames <- filename
			nfiles++
		}
		return nil
	}

	// test Go files provided via -files, if any
	if *files != "" {

tasks.register('ensureDirectory') {
    // Store target directory into a variable to avoid project reference in the configuration cache
    def directory = file("images")

    doLast {
        Files.createDirectories(directory.toPath())
    }
}
// end::mkdir-example[]

// tag::move-example[]
tasks.register('moveReports') {
    // Store the build directory into a variable to avoid project reference in the configuration cache

                try {
                    Path dest = download.getPath();
                    Files.createDirectories(dest.getParent());
                    Files.copy(remoteFile.toPath(), dest);
                } catch (IOException e) {
                    if (!remoteFile.exists()) {
                        download.setException(new ArtifactNotFoundException(download.getArtifact(), repository));

 *     source-compatible</a> since 4.0)
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
/*
 * The type parameter is <T> rather than <T extends @Nullable> so that we can use T in the
 * doEquivalent and doHash methods to indicate that the parameter cannot be null.
 */
public abstract class Equivalence<T> {
  /** Constructor for use by subclasses. */
  protected Equivalence() {}

  /**

            File remoteFile = new File(remoteRepo.getBasedir(), remoteRepo.pathOf(artifact));

            Files.createDirectories(localFile.toPath().getParent());
            Files.copy(remoteFile.toPath(), localFile.toPath());
        }

        artifact.setResolved(true);
    }

    public void retrieve(
            ArtifactRepository repository,
            File destination,

    public abstract ListProperty<String> getReadmePatterns();

    @TaskAction
    void verifyServiceReadme() throws IOException {
        String readmeContents = new String (Files.readAllBytes(getReadme().getAsFile().get().toPath()));
        for (String requiredSection : getReadmePatterns().get()) {
            Pattern pattern = Pattern.compile(requiredSection, Pattern.MULTILINE);
            if (!pattern.matcher(readmeContents).find()) {

    }

    @Nonnull
    @Override
    public Path getPomPath() {
        return nonNull(project.getFile(), "pomPath").toPath();
    }

    @Override
    public Path getBasedir() {
        return nonNull(project.getBasedir(), "basedir").toPath();
    }

    @Nonnull
    @Override
    public List<DependencyCoordinate> getDependencies() {

        File classpath = ClasspathUtil.getClasspathForClass(testClass)
        File classFile = new File(classpath, testClass.name.replace('.', '/') + '.class')
        byte[] bytes = Files.readAllBytes(classFile.toPath())
        MyClassLoader myClassLoader = new MyClassLoader()

        when:
        Class klass = ClassLoaderUtils.define(myClassLoader, DefaultClassLoaderFactoryTestHelper.name, bytes)

        then: