&& duplicateSessionMap.get(sessionId).plusMinutes(searchStoreInterval).isAfter(requestedAt)) {
                return;
            }

            final StringBuilder sb = new StringBuilder(100);
            final List<String> fields = new ArrayList<>();
            final List<String> tags = new ArrayList<>();
            final List<String> roles = new ArrayList<>();

                char sp;
                if (url.indexOf('?') == -1) {
                    sp = '?';
                } else {
                    sp = '&';
                }
                final StringBuilder urlBuf = new StringBuilder(100);
                for (final String param : paramList) {
                    urlBuf.append(sp).append(param);
                    if (sp == '?') {
                        sp = '&';

        if (StringUtil.isBlank(content)) {
            return StringUtil.EMPTY;
        }
        final String[] values = content.split("\n");
        final StringBuilder buf = new StringBuilder((int) (content.length() * 1.3));
        buf.append(prefix).append(1).append(':').append(values[0]);
        for (int i = 1; i < values.length; i++) {

    assertEquals("a", Strings.commonPrefix("abc", "aaaaa"));
    assertEquals("aa", Strings.commonPrefix("aa", "aaaaa"));
    assertEquals("abc", Strings.commonPrefix(new StringBuilder("abcdef"), "abcxyz"));

    // Identical valid surrogate pairs.
    assertEquals(
        "abc\uD8AB\uDCAB", Strings.commonPrefix("abc\uD8AB\uDCABdef", "abc\uD8AB\uDCABxyz"));
    // Differing valid surrogate pairs.

          idx++;
          break;
        }
      }
    }

    stack.pop();
    return idx - start;
  }

  private static CharSequence reverse(CharSequence s) {
    return new StringBuilder(s).reverse();
  }

        StringBuilder buf = null;
        XPathNodes list = null;
        try {
            list = getXPathAPI().selectNodeList(document, xpath);
            for (int i = 0; i < list.size(); i++) {
                if (buf == null) {
                    buf = new StringBuilder(1000);
                }
                Node node = list.get(i).cloneNode(true);

            } catch (final Exception e) {
                logger.warn("Failed to access log files.", e);
            }
        }
    }

    protected String getHostInfo() {
        final StringBuilder buf = new StringBuilder();
        try {
            final InetAddress ia = InetAddress.getLocalHost();
            final String hostname = ia.getHostName();
            if (StringUtil.isNotBlank(hostname)) {

    }

    @Override
    public String getSinkContents() throws IOException {
      File file = getFile();
      Reader reader = new InputStreamReader(new FileInputStream(file), UTF_8);
      StringBuilder builder = new StringBuilder();
      CharBuffer buffer = CharBuffer.allocate(100);
      while (reader.read(buffer) != -1) {
        Java8Compatibility.flip(buffer);
        builder.append(buffer);

        return session;
    }

    private static final char[] hexCode = "0123456789ABCDEF".toCharArray();

    private static String printHexBinary(byte[] data) {
        StringBuilder r = new StringBuilder(data.length * 2);
        for (byte b : data) {
            r.append(hexCode[(b >> 4) & 0xF]);
            r.append(hexCode[(b & 0xF)]);
        }
        return r.toString();
    }

        assertEquals("0001", StringUtil.toHex(1));
    }

    /**
     * @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