assertEquals("localhost", config.getMailHostname());
    }

    // Test with different from names
    public void test_differentFromNames() {
        String[] fromNames = { "Administrator", "Support Team", "No Reply", "Test User" };

        for (String name : fromNames) {
            ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
                private static final long serialVersionUID = 1L;

        assertEquals("{labels.page_not_found_title}", FessLabels.LABELS_page_not_found_title);
        assertEquals("{labels.check_url}", FessLabels.LABELS_check_url);

        // Test administration labels
        assertEquals("{labels.administration}", FessLabels.LABELS_ADMINISTRATION);
        assertEquals("{labels.user_name}", FessLabels.LABELS_user_name);
        assertEquals("{labels.profile_button}", FessLabels.LABELS_profile_button);

public class AdminPluginAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminPluginAction() {
        super();
    }

    /**
     * Role identifier for plugin administration.
     */
    public static final String ROLE = "admin-plugin";

    private static final Logger logger = LogManager.getLogger(AdminPluginAction.class);

    private static final String UPLOAD = "upload";

/**
 * Service class for managing stemmer override dictionary operations.
 *
 * This service provides functionality for CRUD operations on stemmer override
 * dictionaries. Stemmer override dictionaries allow administrators to define
 * custom stemming rules that override the default stemming behavior for
 * specific terms, improving search accuracy for domain-specific vocabularies.
 */
public class StemmerOverrideService {

 *
 */
public class AdminGroupAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminGroupAction() {
        super();
    }

    /** The role name for group administration. */
    public static final String ROLE = "admin-group";

    /** Logger for this class. */
    private static final Logger logger = LogManager.getLogger(AdminGroupAction.class);

public class AdminFileconfigAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminFileconfigAction() {
        super();
    }

    /** The role name for file configuration administration. */
    public static final String ROLE = "admin-fileconfig";

    /** Logger for this class. */
    private static final Logger logger = LogManager.getLogger(AdminFileconfigAction.class);

public class AdminLabeltypeAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminLabeltypeAction() {
        super();
    }

    /** The role name for label type administration. */
    public static final String ROLE = "admin-labeltype";

    /** Logger for this class. */
    private static final Logger logger = LogManager.getLogger(AdminLabeltypeAction.class);

/**
 * Admin action for Synonym management.
 *
 */
public class AdminDictSynonymAction extends FessAdminAction {

    /**
     * Role name required for accessing synonym dictionary administration features.
     */
    public static final String ROLE = "admin-dict";

    private static final Logger logger = LogManager.getLogger(AdminDictSynonymAction.class);

**Action required** for Kubernetes cluster administrators and for distributions that manage the cluster Service CIDR.
Kubernetes now allows users to define the cluster Service CIDR via an API object: ServiceCIDR.

     * @return the thread pool
     */
    @Override
    public ThreadPool threadPool() {
        return client.threadPool();
    }

    /**
     * Gets the admin client for cluster and index administration.
     *
     * @return the admin client
     */
    @Override
    public AdminClient admin() {
        return client.admin();
    }

    /**