final List<Map<String, String>> envItems = getEnvItems();
        final List<Map<String, String>> fessPropItems = getFessPropItems(fessConfig);
        final List<Map<String, String>> propItems = getPropItems();
        return asJson(new ApiResult.ApiSystemInfoResponse().bugReportProps(bugReportItems).envProps(envItems).fessProps(fessPropItems)
                .systemProps(propItems).status(ApiResult.Status.OK).result());
    }

                            <c:if test="${empty fessPropItems}">
									<textarea id="fessPropData" class="systemInfoData form-control"
                                              readonly><la:message
                                            key="labels.system_info_system_properties_does_not_exist"/></textarea>
                            </c:if>
                            <c:if test="${!empty fessPropItems}">

        RenderDataUtil.register(data, "propItems", getPropItems());
    }

    protected void registerFessPropItems(final RenderData data) {
        RenderDataUtil.register(data, "fessPropItems", getFessPropItems(fessConfig));
    }

    protected void registerBugReportItems(final RenderData data) {
        RenderDataUtil.register(data, "bugReportItems", getBugReportItems());
    }