* Log the login activity.
     * @param user The user.
     */
    public void login(final OptionalThing<FessUserBean> user) {
        final Map<String, String> valueMap = new LinkedHashMap<>();
        valueMap.put("action", Action.LOGIN.name());
        valueMap.put("user", user.map(FessUserBean::getUserId).orElse("-"));
        valueMap.put("permissions",

   * called multiple times.
   */
  @ForOverride
  protected abstract void doStart();

  /**
   * This method should be used to initiate service shutdown. The invocation of this method should
   * cause a call to {@link #notifyStopped()}, either during this method's run, or after it has

Use [CertificatePinner](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-certificate-pinner/) to restrict which certificates and certificate authorities are trusted. Certificate pinning increases security, but limits your server team’s abilities to update their TLS certificates. **Do not use certificate pinning without the blessing of your server’s TLS administrator!**

        return charset;
    }

    /**
     * Gets the character encoding used for files.
     *
     * @return the character encoding
     */
    public String getCharset() {
        return charset;
    }

    /**
     * Sets the character encoding used for files.
     *
     * @param charset the character encoding to set
     */

 * result and storing it. Unsuccessful responses are logged for debugging purposes.
 * </p>
 *
 * <p>
 * The class uses {@link CrawlerContainer} to access components like {@link AccessResult}
 * and {@link UrlQueue}. It also uses {@link CrawlingParameterUtil} to access services
 * like {@link UrlQueueService} and DataService, as well as the {@link CrawlerContext}.
 * </p>
 *
 * <p>

Certificate Authorities
-----------------------

The above example uses a self-signed certificate. This is convenient for testing but not
representative of real-world HTTPS deployment. To get closer to that we can use `HeldCertificate`
to generate a trusted root certificate, an intermediate certificate, and a server certificate.
We use `certificateAuthority(int)` to create certificates that can sign other certificates. The

    @Override
    public Set<Plugin> getPluginsBoundByDefaultToAllLifecycles(String packaging) {
        Set<Plugin> plugins;

        // NOTE: The upper-case packaging name is intentional, that's a special hinting mode used for certain tests
        if ("JAR".equals(packaging)) {
            plugins = new LinkedHashSet<>();

            plugins.add(newPlugin("maven-compiler-plugin", "compile", "testCompile"));

            echo " OK"
        fi

        # Create fess user if not existing
        if ! id $FESS_USER > /dev/null 2>&1 ; then
            echo -n "Creating $FESS_USER user..."
            useradd --system \
                    -M \
                    --gid "$FESS_GROUP" \
                    --shell /sbin/nologin \
                    --comment "fess user" \
                    -d "$FESS_USER_HOME"  \

        // Test List interface (should use get(0) for performance)
        List<BsUser> list = Arrays.asList(entity1, entity2);
        RenderDataUtil.register(data, "list", list);

        Object result = data.getDataMap().get("list");
        assertNotNull(result);
        assertTrue(result instanceof List);

        // Test Set interface (should use iterator().next())
        Set<BsUser> set = new HashSet<>();

    // ============================================================

    /** Property key for user information configuration. */
    public static final String USER_INFO_PROPERTY = "user.info";

    /** Property key for user favorite functionality configuration. */
    public static final String USER_FAVORITE_PROPERTY = "user.favorite";

    /** Property key for search log configuration. */