/** Highlight query parameters. */
    public String[] hq;

    /** Search query parameter for error page. */
    public String q;

    /** Number of results parameter for error page. */
    public String num;

    /** Sort parameter for error page. */
    public String sort;

    /** Language parameter for error page. */
    public String lang;

    /** Additional fields map for cache operations. */

    },
    ADD_COLLECTION {
      @Override
      void doIt(ImmutableDoubleArray.Builder builder, AtomicInteger counter) {
        List<Double> list = new ArrayList<>();
        double num = random.nextInt(10);
        for (int i = 0; i < num; i++) {
          list.add((double) counter.getAndIncrement());
        }
        builder.addAll(list);
      }
    },
    ADD_ITERABLE {
      @Override

            final String excludedUrlsStr = webConfig.getExcludedUrls() != null ? webConfig.getExcludedUrls() : StringUtil.EMPTY;

            // num of threads
            final CrawlerContext crawlerContext = crawler.getCrawlerContext();
            final int numOfThread =

            LaRequestUtil.getOptionalRequest().ifPresent(request -> {
                final HttpSession session = request.getSession(false);
                if (session != null && form.num != null) {
                    session.setAttribute(Constants.RESULTS_PER_PAGE, form.num);
                }
            });
        }
        return doSearch(form);
    }

    /**
     * The previous page.
     * @param form The search form.

        return requestBody;
    }

    @Override
    protected void checkUpdate() {
        Map<String, Object> searchBody = new HashMap<>();
        searchBody.put("size", NUM * 2);
        List<String> valueList = getPropList(searchBody, KEY_PROPERTY);
        for (String value : valueList) {
            assertTrue(value.endsWith(NEW_SUFFIX));
        }
    }

    @Test

</h3>
<div>
	<fieldset class="mb-3">
		<legend><la:message key="labels.index_num" /></legend>
		<label for="numSearchOption"><la:message key="labels.index_num" /></label>
		<la:select property="num" styleId="numSearchOption"
			styleClass="form-control">
			<option value="10">
				<la:message key="labels.search_result_select_num" />
			</option>
			<la:option value="10">10</la:option>

</h3>
<div>
	<fieldset class="mb-3">
		<legend><la:message key="labels.index_num" /></legend>
		<label for="numSearchOption"><la:message key="labels.index_num" /></label>
		<la:select property="num" styleId="numSearchOption"
			styleClass="form-control">
			<option value="10">
				<la:message key="labels.search_result_select_num" />
			</option>
			<la:option value="10">10</la:option>

     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            duplicateHostPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {
            duplicateHostPager.setCurrentPageNumber(0);
        });

          required: false
          schema:
            type: integer
            minimum: 0
            exclusiveMinimum: false
            default: 0
            example: 0
        - name: num
          in: query
          description: The number of returned documents as a search result
          required: false
          schema:
            type: integer
            minimum: 0

    public class MyBean2 {
        /**
         *
         */
        public MyBean2() {
        }

        /**
         * @param num
         * @param text
         * @param bean1
         * @param bean2
         */
        public MyBean2(final int num, final String text, final MyBean bean1, final MyBean2 bean2) {
        }

        /**
         * @param i
         */