}

    /**
     * @throws Exception
     */
    @Test
    public void testAppendHex() throws Exception {
        final StringBuilder buf = new StringBuilder();
        StringUtil.appendHex(buf, (byte) 1);
        assertEquals("01", buf.toString());
    }

    /**
     * @throws Exception
     */
    @Test
    public void testCamelize() throws Exception {

            final StringBuilder buf = new StringBuilder(255);
            final XPathNodes nodeList = getXPathAPI().selectNodeList(document, targetNodePath);
            for (int i = 0; i < nodeList.size(); i++) {
                final Node node = nodeList.get(i);
                buf.append(node.getTextContent()).append(' ');
            }
            return new ExtractData(buf.toString().replaceAll("\\s+", " ").trim());

            return url;
        }

        final StringBuilder buf = new StringBuilder(url.length() + 100);
        for (final char c : url.toCharArray()) {
            if (CharUtil.isUrlChar(c)) {
                buf.append(c);
            } else {
                try {
                    buf.append(URLEncoder.encode(String.valueOf(c), enc));

        } else {
            StringBuilder buf = new StringBuilder();
            for (Iterator<Restriction> i = restrictions.iterator(); i.hasNext(); ) {
                Restriction r = i.next();

                buf.append(r.toString());

                if (i.hasNext()) {
                    buf.append(',');
                }
            }
            return buf.toString();
        }
    }

     * @param buf the character buffer for decoding
     * @return the decoded String
     * @throws IOException if a decoding error occurs
     */
    public static String dec_ucs2le(final byte[] src, int si, final int slim, final char[] buf) throws IOException {
        int bi;

        for (bi = 0; si + 1 < slim; bi++, si += 2) {
            buf[bi] = (char) dec_uint16le(src, si);

// of leak checking. It excludes testing or runtime ones.
func pickRelevantGoroutines() (gs []string) {
	// get runtime stack buffer.
	buf := debug.Stack()
	// runtime stack of go routines will be listed with 2 blank spaces between each of them, so split on "\n\n" .
	for g := range strings.SplitSeq(string(buf), "\n\n") {
		// Again split on a new line, the first line of the second half contains the info about the go routine.

	// Read `xl.meta` in parallel across disks.
	for index := range rawFileInfos {
		rf := rawFileInfos[index]
		if rf.Buf == nil {
			continue
		}
		if !readData {
			// Save the buffer so we can reuse it.
			v2bufs[index] = rf.Buf
		}

		var xl xlMetaV2
		if err := xl.LoadOrConvert(rf.Buf); err != nil {
			errs[index] = err
			continue
		}
		metadataArray[index] = &xl

        ComponentUtil.register(new SystemHelper(), "systemHelper");
        crawlerStatsHelper = new CrawlerStatsHelper() {
            @Override
            protected void log(final StringBuilder buf) {
                localLogMsg.set(buf.toString());
            }
        };
        crawlerStatsHelper.init();
    }

    public void test_beginDone() {
        String key = "test";
        crawlerStatsHelper.begin(key);

        try {
            final InputStream is = request.getInputStream();
            try {
                final byte[] buf = new byte[1024];
                while ((is.read(buf)) != -1) {}
            } catch (final Exception ignored) {} finally {
                try {
                    is.close();
                } catch (final Exception ignored) {}
            }

        final StringBuilder buf = new StringBuilder(50);
        for (int i = 0; i < docid.length(); i += splitSize) {
            int hash = docid.substring(i).hashCode() % splitHashSize;
            if (hash < 0) {
                hash *= -1;
            }
            buf.append('_').append(Integer.toString(hash)).append('/');
        }
        buf.append(docid).append('.').append(imageExtention);