StringBuilder sb = new StringBuilder();
        for (int i = offset; i < offset + length && buffer[i] != 0; i++) {
            if (buffer[i] != 0) {
                sb.append((char) buffer[i]);
            }
        }
        return sb.toString();
    }

        byte[] data = new byte[] { 0x04, 0x00, 0x00, 0x00, // total
                0x01, 0x00, 0x00, 0x00, // unused
                0x02, 0x00, 0x00, 0x00, // used
                0x00, 0x00, // unused char
                0x41, 0x00, // 'A'
                0x42, 0x00 // 'B'
        };
        PacDataInputStream pdis = createInputStream(data);
        String str = pdis.readString();
        assertEquals("AB", str);

     * @throws EmptyArgumentException
     *             If the argument is <code>null</code> or an empty array.
     */
    public static void assertArgumentNotEmpty(final String argName, final char[] argValue) {
        if (ArrayUtil.isEmpty(argValue)) {
            throw new EmptyArgumentException(argName, "ECL0011", asArray(argName));
        }
    }

    /**

     */
    private String createTestString(int length) {
        StringBuilder sb = new StringBuilder(length);
        for (int i = 0; i < length; i++) {
            sb.append((char) ('A' + (i % 26)));
        }
        return sb.toString();
    }

    /**
     * Helper method to create a mock Type 2 message with target information for NTLMv2
     */

    }

    /**
     * Test constructor with special characters in message
     */
    public void test_constructor_withSpecialCharactersInMessage() {
        String message = "Error: \n\t\r\0\b\f with special chars #@!$%^&*()[]{}";
        CrawlerSystemException exception = new CrawlerSystemException(message);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
    }

    /**

    }

    static boolean isDotQuadIP(final String hostname) {
        if (hostname != null && hostname.length() > 0 && Character.isDigit(hostname.charAt(0))) {
            int i, len, dots;
            char[] data;

            i = dots = 0; /* quick IP address validation */
            len = hostname.length();
            data = hostname.toCharArray();
            while (i < len && Character.isDigit(data[i++])) {

        final Runnable task = () -> {
            final String finalUrl;
            if (paramList != null) {
                char sp;
                if (url.indexOf('?') == -1) {
                    sp = '?';
                } else {
                    sp = '&';
                }

    String CRAWLER_DOCUMENT_SPACE_CHARS = "crawler.document.space.chars";

    /** The key of the configuration. e.g. u002eu06d4u2e3cu3002 */
    String CRAWLER_DOCUMENT_FULLSTOP_CHARS = "crawler.document.fullstop.chars";

    /** The key of the configuration. e.g. UTF-8 */
    String CRAWLER_CRAWLING_DATA_ENCODING = "crawler.crawling.data.encoding";

            return path;
        }

        try {
            final StringBuilder buf = new StringBuilder(path.length() + 100);
            for (int i = 0; i < path.length(); i++) {
                final char c = path.charAt(i);
                if (CharUtil.isUrlChar(c) || c == '^' || c == '{' || c == '}' || c == '|' || c == '\\') {
                    buf.append(c);
                } else {

        // Prepare test data with long filename (255 characters)
        StringBuilder longName = new StringBuilder();
        for (int i = 0; i < 255; i++) {
            longName.append((char) ('a' + (i % 26)));
        }
        String expectedFilename = longName.toString();
        byte[] buffer = createValidBuffer(expectedFilename, "LONGNA~1.TXT", true);

        // Decode