final User user = new User();
        assertNull(user.getGroups());

        final String[] groups = new String[] { "group1", "group2" };
        user.setGroups(groups);
        assertNotNull(user.getGroups());
        assertEquals(2, user.getGroups().length);
        assertEquals("group1", user.getGroups()[0]);
        assertEquals("group2", user.getGroups()[1]);
    }

    @Test

        // Test with empty groups
        testUser.setGroupNames(new String[] {});
        assertNotNull(fessUserBean.getGroups());
        assertEquals(0, fessUserBean.getGroups().length);

        // Test with single group
        testUser.setGroupNames(new String[] { "developers" });
        String[] groups = fessUserBean.getGroups();
        assertEquals(1, groups.length);
        assertEquals("developers", groups[0]);

        TaskProvider<RenderMarkdown> releaseNotesMarkdown = tasks.register("releaseNotesMarkdown", RenderMarkdown.class, task -> {
            task.setGroup("release notes");
            task.setDescription("Generate release notes HTML page from Markdown.");

            task.getInputEncoding().convention(Charset.defaultCharset().name());

    public String[] getRoleNames() {
        return stream(getRoles()).get(stream -> stream.map(this::decode).toArray(n -> new String[n]));
    }

    @Override
    public String[] getGroupNames() {
        return stream(getGroups()).get(stream -> stream.map(this::decode).toArray(n -> new String[n]));
    }

    private String decode(final String value) {
        return new String(Base64.getDecoder().decode(value), Constants.CHARSET_UTF_8);
    }

        });

        TaskProvider<AsciidoctorTask> userguideMultiPage = tasks.register("userguideMultiPage", AsciidoctorTask.class, task -> {
            task.setGroup("documentation");
            task.setDescription("Generates multi-page user manual.");
            task.dependsOn(extension.getUserManual().getStagedDocumentation());

            task.sources(patternSet -> {

        tasks.register("serveDocs", ServeDocs.class, task -> {
            task.setDescription("Runs a local webserver to serve generated documentation.");
            task.setGroup("documentation");

            int webserverPort = 8000;
            task.getJavaLauncher().set(
                task.getProject().getExtensions().getByType(JavaToolchainService.class)

            task.into(layout.getBuildDirectory().dir("groovyPackageList"));
        });

        TaskProvider<Javadoc> javadocAll = tasks.register("javadocAll", Javadoc.class, task -> {
            task.setGroup("documentation");
            task.setDescription("Generate Javadocs for all API classes");

            // TODO: This breaks if version is changed later
            task.setTitle("Gradle API " + project.getVersion());

            if (StringUtil.isEmpty(key) || userBean
                    .map(user -> stream(user.getRoles()).get(stream -> stream.anyMatch(s -> (ROLE_VALUE_PREFIX + s).equals(key)))
                            || stream(user.getGroups()).get(stream -> stream.anyMatch(s -> (GROUP_VALUE_PREFIX + s).equals(key))))
                    .orElse(false)) {
                return p.getSecond();
            }
            return null;