bus.register(compCatcher);

    // Two additional event types: Object and Comparable<?> (played by Integer)
    Object objEvent = new Object();
    Object compEvent = 6;

    bus.post(EVENT);
    bus.post(objEvent);
    bus.post(compEvent);

    // Check the StringCatcher...
    List<String> stringEvents = stringCatcher.getEvents();
    assertEquals("Only one String should be delivered.", 1, stringEvents.size());

    bus.register(compCatcher);

    // Two additional event types: Object and Comparable<?> (played by Integer)
    Object objEvent = new Object();
    Object compEvent = 6;

    bus.post(EVENT);
    bus.post(objEvent);
    bus.post(compEvent);

    // Check the StringCatcher...
    List<String> stringEvents = stringCatcher.getEvents();
    assertEquals("Only one String should be delivered.", 1, stringEvents.size());

  @GwtIncompatible // SerializableTester
  public void testIsNull_serialization() {
    Predicate<String> pre = Predicates.isNull();
    Predicate<String> post = SerializableTester.reserializeAndAssert(pre);
    assertEquals(pre.apply("foo"), post.apply("foo"));
    assertEquals(pre.apply(null), post.apply(null));
  }

  public void testNotNull_apply() {
    Predicate<@Nullable Integer> notNull = Predicates.notNull();

            final Map<String, Object> requestBody = new HashMap<>();
            final String schedulerId = getSchedulerIds(namePrefix).get(0);
            final Response response = checkMethodBase(requestBody).post("/api/admin/scheduler/" + schedulerId + "/start");
            if (response.getBody().jsonPath().getInt("response.status") == 0) {
                logger.info("Start scheduler \"{}\"", schedulerId);
                return;

  @GwtIncompatible // SerializableTester
  public void testIsNull_serialization() {
    Predicate<String> pre = Predicates.isNull();
    Predicate<String> post = SerializableTester.reserializeAndAssert(pre);
    assertEquals(pre.apply("foo"), post.apply("foo"));
    assertEquals(pre.apply(null), post.apply(null));
  }

  public void testNotNull_apply() {
    Predicate<@Nullable Integer> notNull = Predicates.notNull();

        return asJson(
                new ApiUpdateResponse().id(doc.get(fessConfig.getIndexFieldDocId()).toString()).created(true).status(Status.OK).result());
    }

    // POST /api/admin/searchlist/doc
    @Execute
    public JsonResponse<ApiResult> post$doc(final EditBody body) {
        validateApi(body, messages -> {});
        if (body.doc == null) {

        storeStateInSession(request.getSession(), state, nonce);
        final String authUrl = getAuthority() + getTenant()
                + "/oauth2/authorize?response_type=code&scope=directory.read.all&response_mode=form_post&redirect_uri="
                + URLEncoder.encode(getReplyUrl(request), Constants.UTF_8_CHARSET) + "&client_id=" + getClientId()
                + "&resource=https%3a%2f%2fgraph.microsoft.com" + "&state=" + state + "&nonce=" + nonce;

                "fess_config.crawling_info", //
                "fess_config.crawling_info_param", //
                "fess_config.data_config", //
                "fess_config.duplicate_host", //
                "fess_config.elevate_word", //
                "fess_config.elevate_word_to_label", //
                "fess_config.failure_url", //
                "fess_config.file_authentication", //

        defaultSettings.put("onelogin.saml2.sp.assertion_consumer_service.url", "http://localhost:8080/sso/");
        defaultSettings.put("onelogin.saml2.sp.assertion_consumer_service.binding", "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST");
        defaultSettings.put("onelogin.saml2.sp.single_logout_service.url", "http://localhost:8080/sso/logout");

     * already have to deal with, thanks to DI frameworks that perform field and method injection,
     * frameworks like Android that define post-construct hooks like Activity.onCreate, etc.
     */

    @CheckForNull private ValueSetLink<K, V> predecessorInValueSet;
    @CheckForNull private ValueSetLink<K, V> successorInValueSet;