// we rule out characters that would cause problems in host headers.
    if (c <= '\u001f' || c >= '\u007f') {
      return true
    }
    // Check for the characters mentioned in the WHATWG Host parsing spec:
    // U+0000, U+0009, U+000A, U+000D, U+0020, "#", "%", "/", ":", "?", "@", "[", "\", and "]"
    // (excluding the characters covered above).
    if (" #%/:?@[\\]".indexOf(c) != -1) {

   *
   * @param escaper the non-null escaper to test
   */
  public static void assertBasic(Escaper escaper) throws IOException {
    // Escapers operate on characters: no characters, no escaping.
    Assert.assertEquals("", escaper.escape(""));
    // Assert that escapers throw null pointer exceptions.
    try {
      escaper.escape((String) null);

   *
   * @param escaper the non-null escaper to test
   */
  public static void assertBasic(Escaper escaper) throws IOException {
    // Escapers operate on characters: no characters, no escaping.
    Assert.assertEquals("", escaper.escape(""));
    // Assert that escapers throw null pointer exceptions.
    try {
      escaper.escape((String) null);

     *
     * @param ch the characters from the XML document
     * @param start the start position in the character array
     * @param length the number of characters to use from the character array
     * @throws SAXException if a SAX error occurs during character processing
     */
    @Override
    public void characters(final char[] ch, final int start, final int length) throws SAXException {

    }

    public void test_toLowercaseWildcard_internationalCharacters() {
        queryCommand.setLowercaseWildcard(true);

        // Test with various international characters
        assertEquals("äöü", queryCommand.toLowercaseWildcard("ÄÖÜ"));
        assertEquals("日本語", queryCommand.toLowercaseWildcard("日本語")); // Japanese doesn't change

    }

    /**
     * Encodes a URL by encoding non-URL-safe characters.
     * Uses the request's character encoding if available, otherwise defaults to UTF-8.
     * Only encodes characters that are not considered URL-safe according to CharUtil.
     *
     * @param url the URL to encode
     * @return the encoded URL with non-URL-safe characters properly encoded
     */
    public static String encodeUrl(final String url) {

    }

    // Test append with Unicode characters
    public void test_append_unicodeCharacters() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> "テスト 测试 테스트 🎉";

        monitorTarget.append(buf, "unicodeKey", supplier);
        // Unicode characters are escaped in JSON format

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

    public void test_constructor_withSpecialCharactersInMessage() {
        // Test constructor with special characters in message
        final String message = "Job failed with special chars: \n\t\r\"'<>&";
        final JobProcessingException exception = new JobProcessingException(message);

        assertNotNull(exception);

            assertFalse("Should return empty for locale: " + locale, result.isPresent());
        }
    }

    public void test_provide_withSpecialCharacters() {
        // Test classification names with special characters
        assertProvideThrowsException("Test@Classification");
        assertProvideThrowsException("Test#Classification");
        assertProvideThrowsException("Test$Classification");

     * This is a required field that identifies the specific crawling session.
     * Maximum length is 20 characters.
     */
    @Required
    @Size(max = 20)
    public String sessionId;

    /**
     * The name or description of the crawling session.
     * This is an optional descriptive field with a maximum length of 20 characters.
     */
    @Size(max = 20)
    public String name;

    /**