}
            }
        } catch (SocketException e) {
            log.error("Failed to discover local interfaces", e);
        }

        // Sort by score
        localInterfaces.sort((a, b) -> Integer.compare(b.getScore(), a.getScore()));

        log.debug("Discovered {} local network interfaces", localInterfaces.size());
    }

    private boolean canEnableMultiChannel() {

 * This factory maintains a registry of data store implementations and provides methods
 * to register, retrieve, and discover available data stores.
 *
 * <p>Data stores are registered by name and class name, allowing flexible lookup.
 * The factory also supports dynamic discovery of data store plugins by scanning
 * JAR files for data store configurations.</p>
 *

public void initializeWitnessSupport() {
    Configuration config = context.getConfig();
    
    if (!config.isUseWitness()) {
        return;
    }
    
    try {
        // Discover witness service
        InetAddress witnessServer = discoverWitnessService();
        if (witnessServer != null) {
            witnessClient = new WitnessClient(witnessServer, context);
            witnessEnabled = true;

            log.info("Server does not support multi-channel");
            return;
        }
        
        // Query network interfaces from server
        queryRemoteInterfaces();
        
        // Discover local interfaces
        discoverLocalInterfaces();
        
        // Enable multi-channel if we have multiple usable interfaces
        if (canEnableMultiChannel()) {
            multiChannelEnabled = true;

            log.warn("Failed to initialize witness support", e);
        }
    }

    /**
     * Discover witness service for the current server
     *
     * @return witness server address or null if not found
     * @throws IOException if discovery fails
     */
    private InetAddress discoverWitnessService() throws IOException {
        // Try the same server first

import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;

/**
 * Helper class for managing Fess plugins and artifacts.
 * This class provides functionality to discover, install, and manage various types of plugins
 * including data stores, themes, ingest processors, scripts, web applications, thumbnails, and crawlers.
 */
public class PluginHelper {
    /** Logger instance for this class */

    cache.close()
    createNewCache()

    // The journal has no record that 'a' and 'b' were removed. It will have an entry for both, but
    // when it tries to read the cache files for either entry, it will discover the cache files are
    // missing and remove the entries from the cache.
    assertThat(cache.size()).isEqualTo(4)
    assertThat(cache["a"]).isNull()
    assertThat(cache["b"]).isNull()

     *
     * @param cardView the card view for the notification
     * @param discloser the mail posting discloser
     */
    public void send(final CardView cardView, final SMailPostingDiscloser discloser) {
        sendToSlack(cardView, discloser);
        sendToGoogleChat(cardView, discloser);
    }

    /**
     * Sends a notification to Slack.
     *

 * such as metadata requests and logout actions.
 */
public enum SsoResponseType {
    /**
     * Indicates a request for SSO metadata, which is typically used for
     * configuration and discovery in protocols like SAML.
     */
    METADATA,

    /**
     * Indicates a request to perform a logout operation, terminating the
     * user's SSO session.
     */
    LOGOUT;

        // Test simulating real witness environment scenarios
        // This test validates integration patterns without requiring real cluster

        // Simulate witness service discovery
        InetAddress mockWitnessAddress = InetAddress.getByName("127.0.0.1");

        // Test witness client initialization patterns
        assertDoesNotThrow(() -> {