searchPaging(data, form);
        });
    }

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "groupItems", groupService.getGroupList(groupPager)); // page navi

        // restore from pager
        copyBeanToBean(groupPager, form, op -> op.include("id"));
    }

public class GroupService {

    @Resource
    protected GroupBhv groupBhv;

    @Resource
    protected FessConfig fessConfig;

    @Resource
    protected UserBhv userBhv;

    public List<Group> getGroupList(final GroupPager groupPager) {

        final PagingResultBean<Group> groupList = groupBhv.selectPage(cb -> {
            cb.paging(groupPager.getPageSize(), groupPager.getCurrentPageNumber());

One is written in pure Go and parses /etc/passwd and /etc/group. The other
is cgo-based and relies on the standard C library (libc) routines such as
getpwuid_r, getgrnam_r, and getgrouplist.

When cgo is available, and the required routines are implemented in libc
for a particular platform, cgo-based (libc-backed) code is used.
This can be overridden by using osusergo build tag, which enforces

        validateApi(body, messages -> {});
        final GroupPager pager = copyBeanToNewBean(body, GroupPager.class);
        final List<Group> list = groupService.getGroupList(pager);
        return asJson(
                new ApiResult.ApiConfigsResponse<EditBody>().settings(list.stream().map(this::createEditBody).collect(Collectors.toList()))