*/
    protected void extractFrontMatterMetadata(final Node document, final ExtractData extractData) {
        final YamlFrontMatterVisitor visitor = new YamlFrontMatterVisitor();
        document.accept(visitor);

        final Map<String, List<String>> frontMatter = visitor.getData();
        for (final Map.Entry<String, List<String>> entry : frontMatter.entrySet()) {
            final String key = "frontmatter." + entry.getKey();

     * @param mechanismToken the response token for the selected mechanism
     * @param mechanismListMIC the MIC over the mechanism list
     */
    public NegTokenTarg(final int result, final ASN1ObjectIdentifier mechanism, final byte[] mechanismToken,
            final byte[] mechanismListMIC) {
        setResult(result);
        setMechanism(mechanism);
        setMechanismToken(mechanismToken);
        setMechanismListMIC(mechanismListMIC);

    static final byte TRANS2_QUERY_FS_INFORMATION = (byte) 0x03;
    static final byte TRANS2_QUERY_PATH_INFORMATION = (byte) 0x05;
    static final byte TRANS2_GET_DFS_REFERRAL = (byte) 0x10;
    static final byte TRANS2_SET_FILE_INFORMATION = (byte) 0x08;

    static final int NET_SHARE_ENUM = 0x0000;
    static final int NET_SERVER_ENUM2 = 0x0068;
    static final int NET_SERVER_ENUM3 = 0x00D7;

     * @return the Path object pointing to the requested resource
     */
    protected static Path getPath(final String root, final String base, final String... names) {

        try {
            final ServletContext servletContext = ComponentUtil.getComponent(ServletContext.class);
            final String webinfPath = servletContext.getRealPath("/" + root + base);

    private static final Logger logger = LogManager.getLogger(FileSystemClient.class);

    /** Key for file attribute view in metadata */
    public static final String FILE_ATTRIBUTE_VIEW = "fileAttributeView";

    /** Key for file user in metadata */
    public static final String FS_FILE_USER = "fsFileUser";

    /** Key for file groups in metadata */
    public static final String FS_FILE_GROUPS = "fsFileGroups";

     */
    public PathMappingHelper() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(PathMappingHelper.class);

    /** Function matcher for encode URL. */
    protected static final String FUNCTION_ENCODEURL_MATCHER = "function:encodeUrl";

    /** Groovy matcher prefix. */
    protected static final String GROOVY_MATCHER = "groovy:";

    /** Map of path mappings by process type. */

        final Properties outProperties = new Properties();
        outProperties.setProperty("a", "A");
        final File file = tempFolder.newFile("hoge.properties");
        final FileOutputStream outputStream = OutputStreamUtil.create(file);
        PropertiesUtil.store(outProperties, outputStream, "comments");
        CloseableUtil.close(outputStream);
        final Properties properties = new Properties();

     *
     * @param pairs the list of AV pairs to modify
     * @param type the AV pair type to remove
     */
    public static void remove(final List<AvPair> pairs, final int type) {
        final Iterator<AvPair> it = pairs.iterator();
        while (it.hasNext()) {
            final AvPair p = it.next();
            if (p.getType() == type) {
                it.remove();
            }
        }
    }

    /**

     */
    public final void setAdditionalInformation(final int additionalInformation) {
        this.additionalInformation = additionalInformation;
    }

    /**
     * Sets the query flags for the information request
     *
     * @param queryFlags
     *            the queryFlags to set
     */
    public final void setQueryFlags(final int queryFlags) {
        this.queryFlags = queryFlags;

     * @param encoding the encoding of the child URLs
     */
    protected void storeChildUrls(final CrawlerContext crawlerContext, final Set<RequestData> childUrlList, final String url,
            final int depth, final String encoding) {
        // add url and filter
        final Set<String> urlSet = new HashSet<>();
        final List<UrlQueue<?>> childList = childUrlList.stream()