String fileName = getFileName(result.group(1), sourceFile);
                    File referencedFile = new File(getDocumentationRoot().get().getAsFile(), fileName);
                    if (!referencedFile.exists() || referencedFile.isDirectory()) {
                        errorsForFile.add(new Error(lineNumber, line, "Looking for file named " + fileName));
                    } else {

        // If the maven-wrapper.properties exists, read it and check if it contains a custom
        // wrapperUrl parameter.
        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
        String url = DEFAULT_DOWNLOAD_URL;
        if(mavenWrapperPropertyFile.exists()) {
            FileInputStream mavenWrapperPropertyFileInputStream = null;
            try {

        try (FileSystem fs = FileSystems.newFileSystem(uri, Collections.emptyMap())) {
            Path upgradedPropertiesJson = fs.getPath(UPGRADED_PROPERTIES_FILE);
            if (Files.exists(upgradedPropertiesJson)) {
                Files.copy(upgradedPropertiesJson, to.getAsFile().get().toPath(), StandardCopyOption.REPLACE_EXISTING);
            } else {
                to.getAsFile().get().delete();
            }

    public static final String CURRENT_ACCESSORS_OF_UPGRADED_PROPERTIES = "currentAccessorsOfUpgradedProperties";

    public static List<UpgradedProperty> parse(String path) {
        File file = new File(path);
        if (!file.exists()) {
            return Collections.emptyList();
        }
        try {
            return new Gson().fromJson(new FileReader(file), new TypeToken<List<UpgradedProperty>>() {}.getType());

        return methods;
    }

    /**
     * Finds a property by name. Includes inherited properties.
     *
     * @param name The property name.
     * @return The property, or null if no such property exists.
     */
    public PropertyMetaData findProperty(String name) {
        PropertyMetaData propertyMetaData = declaredProperties.get(name);
        if (propertyMetaData != null) {
            return propertyMetaData;