* @param discloser the mail posting discloser
     */
    protected void sendToGoogleChat(final CardView cardView, final SMailPostingDiscloser discloser) {
        // https://developers.google.com/hangouts/chat/how-tos/webhooks
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String googleChatWebhookUrls = fessConfig.getGoogleChatWebhookUrls();
        if (StringUtil.isBlank(googleChatWebhookUrls)) {

   * {@code final} keyword. For example, it could be private, or it could be declared by a final
   * class. To tell whether a method is overridable, use {@link Invokable#isOverridable}.
   */
  public final boolean isFinal() {
    return Modifier.isFinal(getModifiers());
  }

  /** Returns true if the method is abstract. */
  public final boolean isAbstract() {

    @Test
    public void test_sendSseEvent_nestedData() {
        final StringWriter stringWriter = new StringWriter();
        final PrintWriter writer = new PrintWriter(stringWriter);

        final Map<String, Object> nestedData = Map.of("outer", Map.of("inner", "value"));
        chatApiManager.sendSseEvent(writer, "test", nestedData);

        final String output = stringWriter.toString();

    }

    static byte[] readSecurityBuffer(final byte[] src, final int index) {
        final int length = readUShort(src, index);
        final int offset = readULong(src, index + 4);
        final byte[] buffer = new byte[length];
        System.arraycopy(src, offset, buffer, 0, length);
        return buffer;
    }

    static void writeULong(final byte[] dest, final int offset, final int ulong) {

     * @return A set of roles.
     */
    public Set<String> build(final SearchRequestType searchRequestType) {
        final Set<String> roleSet = new HashSet<>();
        final HttpServletRequest request = LaRequestUtil.getOptionalRequest().orElse(null);
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final boolean isApiRequest =

        final Path viewPath = ResourceUtil.getViewTemplatePath(themeName);
        closeQuietly(viewPath);
        final Path imagePath = ResourceUtil.getImagePath(themeName);
        closeQuietly(imagePath);
        final Path cssPath = ResourceUtil.getCssPath(themeName);
        closeQuietly(cssPath);
        final Path jsPath = ResourceUtil.getJavaScriptPath(themeName);
        closeQuietly(jsPath);
    }

    /**

     */
    public static List<Map<String, String>> getFessPropItems(final FessConfig fessConfig) {
        final List<Map<String, String>> itemList = new ArrayList<>();
        ComponentUtil.getSystemProperties().entrySet().stream().forEach(e -> {
            final String k = e.getKey().toString();
            final String value;
            if (isMaskedValue(k)) {
                value = MASKED_VALUE;

     * @param boolQuery the boolean query builder to add role filters to
     */
    public void buildRoleQuery(final Set<String> roleSet, final BoolQueryBuilder boolQuery) {
        final BoolQueryBuilder roleQuery = QueryBuilders.boolQuery();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String roleField = fessConfig.getIndexFieldRole();

     * @param texts the query texts
     * @return the query builder
     */
    protected QueryBuilder convertPhraseQuery(final FessConfig fessConfig, final QueryContext context, final PhraseQuery phraseQuery,
            final float boost, final String field, final String[] texts) {
        final String text = String.join(" ", texts);

        if (Constants.DEFAULT_FIELD.equals(field)) {
            context.addFieldLog(field, text);

    public void test_constructorWithMessage() {
        final LlmException exception = new LlmException("Error message");
        assertEquals("Error message", exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_constructorWithMessageAndCause() {
        final RuntimeException cause = new RuntimeException("Root cause");