* @return A list of roles.
     */
    public List<Role> getRoleList(final RolePager rolePager) {

        final PagingResultBean<Role> roleList = roleBhv.selectPage(cb -> {
            cb.paging(rolePager.getPageSize(), rolePager.getCurrentPageNumber());
            setupListCondition(cb, rolePager);
        });

        // update pager

// operating systems.

// dangerousSlice returns a slice which is immediately
// preceded and followed by a faulting page.
func dangerousSlice(t *testing.T) []byte {
	pagesize := syscall.Getpagesize()
	b, err := syscall.Mmap(0, 0, 3*pagesize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANONYMOUS|syscall.MAP_PRIVATE)
	if err != nil {
		t.Fatalf("mmap failed %s", err)
	}

     */
    public List<KuromojiItem> getKuromojiList(final String dictId, final KuromojiPager kuromojiPager) {
        return getKuromojiFile(dictId).map(file -> {
            final int pageSize = kuromojiPager.getPageSize();
            final PagingList<KuromojiItem> kuromojiList = file.selectList((kuromojiPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

            // update pager

        final PagingResultBean<RelatedContent> relatedContentList = relatedContentBhv.selectPage(cb -> {
            cb.paging(relatedContentPager.getPageSize(), relatedContentPager.getCurrentPageNumber());
            setupListCondition(cb, relatedContentPager);
        });

        // update pager

     */
    public List<RoleType> getRoleTypeList(final RoleTypePager roleTypePager) {

        final PagingResultBean<RoleType> roleTypeList = roleTypeBhv.selectPage(cb -> {
            cb.paging(roleTypePager.getPageSize(), roleTypePager.getCurrentPageNumber());
            setupListCondition(cb, roleTypePager);
        });

        // update pager

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

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

        // update pager

     */
    public List<LabelType> getLabelTypeList(final LabelTypePager labelTypePager) {

        final PagingResultBean<LabelType> labelTypeList = labelTypeBhv.selectPage(cb -> {
            cb.paging(labelTypePager.getPageSize(), labelTypePager.getCurrentPageNumber());
            setupListCondition(cb, labelTypePager);
        });

        // update pager

     */
    public List<StopwordsItem> getStopwordsList(final String dictId, final StopwordsPager stopwordsPager) {
        return getStopwordsFile(dictId).map(file -> {
            final int pageSize = stopwordsPager.getPageSize();
            final PagingList<StopwordsItem> stopwordsList =
                    file.selectList((stopwordsPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

            // update pager

     */
    public List<SynonymItem> getSynonymList(final String dictId, final SynonymPager synonymPager) {
        return getSynonymFile(dictId).map(file -> {
            final int pageSize = synonymPager.getPageSize();
            final PagingList<SynonymItem> synonymList = file.selectList((synonymPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

            // update pager

    public List<AccessToken> getAccessTokenList(final AccessTokenPager accessTokenPager) {

        final PagingResultBean<AccessToken> accessTokenList = accessTokenBhv.selectPage(cb -> {
            cb.paging(accessTokenPager.getPageSize(), accessTokenPager.getCurrentPageNumber());
            setupListCondition(cb, accessTokenPager);
        });

        // update pager