}

    @Test
    public void test_multipleExceptionInstances() {
        // Test multiple instances are independent
        InvalidAccessTokenException exception1 = new InvalidAccessTokenException("Type1", "Message1");
        InvalidAccessTokenException exception2 = new InvalidAccessTokenException("Type2", "Message2");

        assertEquals("Type1", exception1.getType());
        assertEquals("Message1", exception1.getMessage());

        JavadocLexer lexer = new HtmlToXmlJavadocLexer(new BasicJavadocLexer(new JavadocScanner(rawCommentText)));
        DocBookBuilder nodes = new DocBookBuilder(document);
        final HtmlGeneratingTokenHandler handler = new HtmlGeneratingTokenHandler(nodes, document);
        handler.add(new HtmlElementTranslatingHandler(nodes, document));
        handler.add(new PreElementHandler(nodes, document));

        // Write completely empty file
        try (java.io.FileWriter fw = new java.io.FileWriter(testFile)) {
            // Write nothing
        }

        // Create a new CharMappingFile instance to ensure clean state
        CharMappingFile emptyMappingFile = new CharMappingFile("empty_test", testFile.getAbsolutePath(), new Date());
        emptyMappingFile.manager(dictionaryManager);

        // Setup: job with logging enabled
        final AtomicReference<LaunchNowOption> capturedOption = new AtomicReference<>();
        final ScheduledJob scheduledJob = createScheduledJob("job-1", "Test Job", true, true);

        registerMockJobManager("job-1", opCall -> {
            final LaunchNowOption option = new LaunchNowOption();
            opCall.callback(option);
            capturedOption.set(option);

        final String testKey = "domain.title";
        final int threadCount = 10;
        final Thread[] threads = new Thread[threadCount];
        final String[] results = new String[threadCount];

        for (int i = 0; i < threadCount; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {
                results[index] = fessConfig.get(testKey);
            });
        }

        UnsupportedSearchException exception = new UnsupportedSearchException(message);

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_constructor_withEmptyMessage() {
        // Test with empty message
        String message = "";
        UnsupportedSearchException exception = new UnsupportedSearchException(message);

        final Pattern parsePattern = Pattern.compile("(.*?)\\s*+=>\\s*+(.*?)\\s*+$");
        final List<CharMappingItem> itemList = new ArrayList<>();
        try (BufferedReader reader = new BufferedReader(new InputStreamReader(in, Constants.UTF_8))) {
            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {

        RequestParameter param = new RequestParameter(name, values);

        assertEquals("", param.getName());
        assertNotNull(param.getValues());
        assertEquals(2, param.getValues().length);
    }

    @Test
    public void test_constructor_withNullValues() {
        // Test with null values array
        String name = "paramName";
        RequestParameter param = new RequestParameter(name, null);

        super.setUp(testInfo);
        thumbnailGenerator = new ThumbnailGenerator();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        super.tearDown(testInfo);
    }

    @Test
    public void test_constructor() {
        // Test default constructor
        ThumbnailGenerator generator = new ThumbnailGenerator();
        assertNotNull(generator);
    }

                    if (subValues.length == 3) {
                        return new Tuple4<>(values[0], subValues[0], subValues[1], subValues[2]);
                    }
                    if (subValues.length == 2) {
                        return new Tuple4<>(values[0], subValues[0], subValues[1], StringUtil.EMPTY);
                    }
                    return new Tuple4<>(values[0], values[1], Constants.MAPPING_TYPE_ARRAY, StringUtil.EMPTY);