assertTrue(queryParseException instanceof RuntimeException);
    }

    @Test
    public void test_getMessage() {
        // Test that message is inherited from the cause
        String errorMessage = "Invalid query syntax";
        ParseException parseException = new ParseException(errorMessage);
        QueryParseException queryParseException = new QueryParseException(parseException);

        assertNull(result, "getAnchorSet should return null for unsupported type");
    }

    /**
     * Test getAnchorSet with mixed valid and invalid URLs
     */
    @Test
    public void test_getAnchorSet_withMixedValidAndInvalid() {
        FessCrawlerThread crawlerThread = new FessCrawlerThread();

        List<String> urls = new ArrayList<>();

     */
    public static final int SID_TYPE_DOM_GRP = 2;

    /**
     * SID type for a domain.
     */
    public static final int SID_TYPE_DOMAIN = 3;

    /**
     * SID type for an invalid SID.
     */
    public static final int SID_TYPE_INVALID = 7;

    /**
     * SID type for an unknown SID.
     */
    public static final int SID_TYPE_UNKNOWN = 8;

    /**

    }

    @Test
    public void test_loadProtocols_invalidPackage() {
        final ProtocolHelper protocolHelper = new ProtocolHelper();

        // Should not throw exception with invalid package
        protocolHelper.loadProtocols("org.invalid.package.does.not.exist");

        // Should have empty arrays initially
        assertEquals(0, protocolHelper.getWebProtocols().length);

        // Test with invalid file path (directory that doesn't exist)
        String invalidPath = "/nonexistent/directory/thread-dump.txt";

        try {
            ThreadDumpUtil.writeThreadDump(invalidPath);
            // Should not throw exception but log warning
        } catch (Exception e) {
            fail("writeThreadDump should handle invalid paths gracefully: " + e.getMessage());
        }
    }

                .map(String::trim)
                .filter(s -> !requiredValidator.isValid(source.get(s), null))
                .collect(Collectors.toList()));
    }

    default boolean isNonEmptyValue(final Object value) {
        final RequiredValidator requiredValidator = new RequiredValidator();
        return requiredValidator.isValid(value, null);
    }

    String getCrawlerDocumentSpaceChars();

    public CronExpressionValidator() {
        // Empty constructor
    }

    @Override
    public void initialize(final CronExpression constraintAnnotation) {
    }

    @Override
    public boolean isValid(final String value, final ConstraintValidatorContext context) {
        return determineValid(value);
    }

    /**
     * Determines if the given value is a valid cron expression.

            listOf(
                "$thing ${describe(thing, desc)}: Is not annotated with @Incubating.",
                "$thing ${describe(thing, desc)}: Has invalid @since: it should be 2.0, but currently is 1.0."
            )

        fun removed(thing: String, desc: String): Pair<String, List<String>> =

        assertNull(accessTokenHelper.getAccessTokenFromRequest(req));
    }

    @Test
    public void test_getAccessTokenFromRequest_bad1() {
        final String token = "INVALID _TOKEN0";
        MockletHttpServletRequest req = getMockRequest();
        req.addHeader("Authorization", token);
        try {
            accessTokenHelper.getAccessTokenFromRequest(req);
            fail();

    }

    // ===================================================================================
    //                                                                       Invalid Query
    //                                                                       =============
    protected void checkEsInvalidQuery(String name, Object value) {