/**
     * Displays the login page.
     *
     * @return the HTML response for the login page
     */
    @Execute
    public HtmlResponse index() {
        getSession().ifPresent(session -> session.removeAttribute(INVALID_OLD_PASSWORD));
        return asIndexPage(null).useForm(LoginForm.class);
    }

    private HtmlResponse asIndexPage(final LoginForm form) {
        if (form != null) {

                .ifPresent(s -> entry.put(new BasicAttribute(fessConfig.getLdapAttrTelephoneNumber(), s)));
        OptionalUtil.ofNullable(user.getHomePhone())
                .filter(StringUtil::isNotBlank)
                .ifPresent(s -> entry.put(new BasicAttribute(fessConfig.getLdapAttrHomePhone(), s)));
        OptionalUtil.ofNullable(user.getHomePostalAddress())
                .filter(StringUtil::isNotBlank)

        stream(tags).of(stream -> stream.sorted().reduce((l, r) -> l + r).ifPresent(v -> buf.append(v)));
        buf.append(CACHE_KEY_SPLITTER);
        stream(roles).of(stream -> stream.sorted().reduce((l, r) -> l + r).ifPresent(v -> buf.append(v)));
        buf.append(CACHE_KEY_SPLITTER);
        stream(fields).of(stream -> stream.sorted().reduce((l, r) -> l + r).ifPresent(v -> buf.append(v)));
        buf.append(CACHE_KEY_SPLITTER);

    assertThat(Enums.getIfPresent(TestEnum.class, "POODLE")).hasValue(TestEnum.POODLE);

    assertThat(Enums.getIfPresent(TestEnum.class, "CHEETO")).isPresent();
    assertThat(Enums.getIfPresent(TestEnum.class, "HONDA")).isPresent();
    assertThat(Enums.getIfPresent(TestEnum.class, "POODLE")).isPresent();

    assertThat(Enums.getIfPresent(TestEnum.class, "CHEETO")).hasValue(TestEnum.CHEETO);

    @get:Optional
    @get:Input
    val androidSdkRoot: Provider<String> = project.providers.environmentVariable("ANDROID_SDK_ROOT")

    @TaskAction
    fun warmup() {
        if (!androidHome.isPresent && !androidSdkRoot.isPresent) {
            logger.lifecycle("Skip warmning up Android home because ANDROID_HOME/ANDROID_SDK_ROOT env vars are not set.")
            return
        }
        sdkVersions.orNull.orEmpty().forEach { version ->

        searchLog.setQueryPageSize(pageSize);
        ComponentUtil.getRequestManager().findUserBean(FessUserBean.class).ifPresent(user -> {
            searchLog.setUser(user.getUserId());
        });

        LaRequestUtil.getOptionalRequest().ifPresent(req -> {
            searchLog.setClientIp(StringUtils.abbreviate(ComponentUtil.getViewHelper().getClientIp(req), 100));

        final long requestedTime = startTime;

        final SearchRequestParams params = rewrite(searchRequestParams);

        LaRequestUtil.getOptionalRequest().ifPresent(request -> {
            request.setAttribute(Constants.REQUEST_LANGUAGES, params.getLanguages());
            request.setAttribute(Constants.REQUEST_QUERIES, params.getQuery());
        });

    /**
     * Kotlin file-facade classes can't have kdoc comments.
     */
    private boolean isKotlinFileFacadeClass(JApiCompatibility member) {
        return member instanceof JApiClass && ((JApiClass) member).getNewClass().isPresent() && KotlinMetadataQueries.INSTANCE.isKotlinFileFacadeClass(((JApiClass) member).getNewClass().get());
    }

            })
        }
        .reduce { acc, next ->
            acc.zip(next) { left, right ->
                when {
                    !left.isPresent -> right
                    !right.isPresent -> left
                    else -> Optional.of(combiner(left.get(), right.get()))
                }
            }
        }
        .map { it.orElse(null) }

        if (jobExecutor == null) {
            throw new ScheduledJobException("No jobExecutor: " + scriptType);
        }

        if (!jobManager.findJobByUniqueOf(LaJobUnique.of(id)).isPresent()) {
            if (logger.isDebugEnabled()) {
                logger.debug("Job is running: id={}", id);
            }
            return;
        }

        TimeoutTask task = null;
        try {