final URL url = new File("/Program File").toURI().toURL();
        assertEquals("file:" + getRoot() + "Program File", ResourceUtil.toExternalForm(url));
    }

    /**
     * @throws Exception
     */
    public void testGetFileName() throws Exception {
        URL url = new File("/Program File").toURI().toURL();
        assertEquals(getRoot() + "Program File", ResourceUtil.getFileName(url));

        final String classFilePath = TestCase.class.getName().replace('.', '/') + ".class";
        final URL classURL = ResourceUtil.getResource(classFilePath);
        final URL jarURL = new File(JarFileUtil.toJarFilePath(classURL)).toURI().toURL();
        ResourceTraversalUtil.forEach(new ZipInputStream(jarURL.openStream()), (ResourceHandler) (path, is) -> {
            try {
                if (count < 10) {
                    System.out.println(path);

                    URI uri = toUri(project.getRootDir(), file, commitId);
                    sourceLinkSpec.getRemoteUrl().set(uri);
                    sourceLinkSpec.getRemoteLineSuffix().set("#L");
                    spec.getSourceLinks().add(sourceLinkSpec);
                }
            );
    }

    private static URI toUri(File projectRootDir, File file, String commitId) {
        try {

        assertEquals("url cannot be null", e.getMessage());
    }

    @Test
    void testGetInputStream() throws Exception {
        URL txtFile = new File("target/test-classes/source.txt").toURI().toURL();
        UrlSource source = new UrlSource(txtFile);
        try (InputStream is = source.getInputStream();
                Scanner scanner = new Scanner(is)) {

    for (String entry : Splitter.on(PATH_SEPARATOR.value()).split(JAVA_CLASS_PATH.value())) {
      try {
        try {
          urls.add(new File(entry).toURI().toURL());
        } catch (SecurityException e) { // File.toURI checks to see if the file is a directory
          urls.add(new URL("file", null, new File(entry).getAbsolutePath()));
        }
      } catch (MalformedURLException e) {

    }

    @TaskAction
    public void executeTask() {
        final URI rootDir = projectLayout.getProjectDirectory().getAsFile().toURI();
        final Map<String, ChangelogEntry> changelogs = this.changelogs.getFiles()
            .stream()
            .collect(Collectors.toMap(file -> rootDir.relativize(file.toURI()).toString(), ChangelogEntry::parse));

        // We don't try to find all such errors, because we expect them to be rare e.g. only

        final String classFilePath = TestCase.class.getName().replace('.', '/') + ".class";
        final URL classURL = ResourceUtil.getResource(classFilePath);
        final URL jarURL = new File(JarFileUtil.toJarFilePath(classURL)).toURI().toURL();
        ClassTraversalUtil.forEach(new ZipInputStream(jarURL.openStream()), (ClassHandler) (packageName, shortClassName) -> {
            if (count < 10) {

        File gradleRuntimeApiInfoJar = from.filter(file -> file.getName().startsWith(gradleApiInfoJarPrefix)).getSingleFile();
        URI uri = URI.create("jar:" + gradleRuntimeApiInfoJar.getAbsoluteFile().toURI());
        try (FileSystem fs = FileSystems.newFileSystem(uri, Collections.emptyMap())) {
            Path upgradedPropertiesJson = fs.getPath(UPGRADED_PROPERTIES_FILE);
            if (Files.exists(upgradedPropertiesJson)) {

            return new FileModelSource(relatedPom.normalize());
        }

        return null;
    }

    @Override
    public URI getLocationURI() {
        return getFile().toURI();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof FileModelSource)) {
            return false;

                result = path.getAbsoluteFile();
            } else {
                // an ordinary relative path, align with base dir
                result = new File(new File(basedir, path.getPath()).toURI().normalize()).getAbsoluteFile();
            }
        }

        return result;
    }