assertTrue(labelTypeHelper.matchLocale(null, Locale.ROOT));
        assertTrue(labelTypeHelper.matchLocale(Locale.ENGLISH, Locale.ROOT));
        assertTrue(labelTypeHelper.matchLocale(Locale.ROOT, Locale.ROOT));
        assertTrue(labelTypeHelper.matchLocale(Locale.ENGLISH, Locale.ENGLISH));

            DslDocModel model = createDslDocModelClosure(loadPluginsMetaData())
            def root = doc.documentElement
            root.section.table.each { Element table ->
                mergeContent(table, model)
            }
            model.classes.each {
                generateDocForType(root.ownerDocument, model, linkRepository, it)
            }
        }

        return systemHelper.getRedirectResponseToLogin(redirect(SsoAction.class));
    }

    /**
     * Redirects the user to the root path of the application.
     *
     * @return HTML response that redirects to the root page
     */
    protected HtmlResponse redirectToRoot() {
        return systemHelper.getRedirectResponseToRoot(newHtmlResponseAsRedirect("/"));
    }

    /**

        return System.getProperty("os.name").toLowerCase(Locale.ROOT).contains("windows");
    }

    private static boolean isMacOS() {
        return System.getProperty("os.name").toLowerCase(Locale.ROOT).contains("mac");
    }

    private static boolean isAlpine() {
        return System.getProperty("java.vm.vendor").toLowerCase(Locale.ROOT).contains("alpine");
    }

    private static class ExecResult {

    /** The key of the configuration. e.g. [Test] */
    String MAIL_SUBJECT_TEST_PREFIX = "mail.subject.test.prefix";

    /** The key of the configuration. e.g. root@localhost */
    String MAIL_RETURN_PATH = "mail.return.path";

    /**
     * Get the value of property as {@link String}.
     * @param propertyKey The key of the property. (NotNull)

        if (labels != null && labels.length > 0) {
            // Validate against configured label types (union of request locale and ROOT for robustness)
            final Locale requestLocale = request.getLocale() != null ? request.getLocale() : Locale.ROOT;
            final Set<String> allowedLabels = new java.util.HashSet<>();
            ComponentUtil.getLabelTypeHelper()

    }

    @Test
    public void test_isValidVirtualHostPath_slashPath() throws Exception {
        setupVirtualHostHelper();

        Boolean result = invokeIsValidVirtualHostPath("/");
        assertTrue("Root path '/' should be valid", result);
    }

    @Test
    public void test_isValidVirtualHostPath_validConfiguredPath() throws Exception {
        setupVirtualHostHelper("/site1", "/site2");

        Exception cause = new IllegalArgumentException("Root cause");
        Exception exception = new RuntimeException("Wrapper exception", cause);

        monitorTarget.appendException(buf, exception);
        assertTrue(buf.toString().contains("Wrapper exception"));
        assertTrue(buf.toString().contains("Root cause"));
        assertTrue(buf.toString().contains("IllegalArgumentException"));
    }

        final String message = "Test stack trace";
        final VaMessenger<FessMessages> messageCode = messages -> messages.addErrorsSsoLoginError(UserMessages.GLOBAL_PROPERTY_KEY);
        final Exception cause = new RuntimeException("Root cause");

        // Execute
        final SsoMessageException exception = new SsoMessageException(messageCode, message, cause);

        // Verify stack trace is available

     * @return A list of label type items.
     */
    public List<Map<String, String>> getLabelTypeItemList(final SearchRequestType searchRequestType) {
        return getLabelTypeItemList(searchRequestType, Locale.ROOT);
    }

    /**
     * Returns a list of label type items.
     *
     * @param searchRequestType The search request type.
     * @param requestLocale The request locale.