method.setAccessible(true);

        final RenderData renderData = new RenderData();
        method.invoke(action, renderData);

        @SuppressWarnings("unchecked")
        final List<String> extraFieldNames = (List<String>) renderData.getDataMap().get("extraFieldNames");
        assertNotNull(extraFieldNames);

import org.lastaflute.web.response.render.RenderData;

public class RenderDataUtilTest extends UnitFessTestCase {

    @Test
    public void test_register_null() {
        RenderData data = new RenderData();
        RenderDataUtil.register(data, "key1", null);
        assertNull(data.getDataMap().get("key1"));
    }

    @Test
    public void test_register_string() {
        RenderData data = new RenderData();

        }
        final WebRenderData renderData = new WebRenderData();
        form.initialize();
        request.setAttribute(Constants.SEARCH_LOG_ACCESS_TYPE, Constants.SEARCH_LOG_ACCESS_TYPE_ADMIN);
        try {
            searchHelper.search(form, renderData, getUserBean());
            return asListHtml().renderWith(data -> {
                renderData.register(data);
            });

import org.dbflute.optional.OptionalEntity;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.render.RenderData;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for File Config management.
 *
 */

import org.dbflute.optional.OptionalEntity;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.render.RenderData;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * Admin action for Web Config management.
 *
 */
public class AdminWebconfigAction extends FessAdminAction {

         * Populates this response with search render data.
         * @param data The search render data to populate from.
         * @return This ApiDocsResponse instance.
         */
        public ApiDocsResponse renderData(final SearchRenderData data) {
            queryId = data.getQueryId();
            docs = data.getDocumentItems();
            highlightParams = data.getAppendHighlightParams();
            execTime = data.getExecTime();