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

            // update pager
            BeanUtil.copyBeanToBean(kuromojiList, kuromojiPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));

        final PagingResultBean<FailureUrl> failureUrlList = failureUrlBhv.selectPage(cb -> {
            cb.paging(failureUrlPager.getPageSize(), failureUrlPager.getCurrentPageNumber());
            setupListCondition(cb, failureUrlPager);
        });

        // update pager
        BeanUtil.copyBeanToBean(failureUrlList, failureUrlPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));

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

        // update pager
        BeanUtil.copyBeanToBean(roleTypeList, roleTypePager, option -> option.include(Constants.PAGER_CONVERSION_RULE));

        this.pageSize = pageSize;
    }

    /**
     * Returns the current page number.
     *
     * @return The current page number.
     */
    public int getCurrentPageNumber() {
        if (currentPageNumber <= 0) {
            currentPageNumber = getDefaultCurrentPageNumber();
        }
        return currentPageNumber;
    }

    /**

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

        // update pager

        final PagingResultBean<RelatedQuery> relatedQueryList = relatedQueryBhv.selectPage(cb -> {
            cb.paging(relatedQueryPager.getPageSize(), relatedQueryPager.getCurrentPageNumber());
            setupListCondition(cb, relatedQueryPager);
        });

        // update pager

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

        // update pager
        BeanUtil.copyBeanToBean(labelTypeList, labelTypePager, option -> option.include(Constants.PAGER_CONVERSION_RULE));

            final int pageSize = stopwordsPager.getPageSize();
            final PagingList<StopwordsItem> stopwordsList =
                    file.selectList((stopwordsPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

            // update pager
            BeanUtil.copyBeanToBean(stopwordsList, stopwordsPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));

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

            // update pager
            BeanUtil.copyBeanToBean(synonymList, synonymPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));

        assertEquals(1, itemList1.getCurrentPageNumber());
        assertEquals(20, itemList1.getPageSize());

        final PagingList<SynonymItem> itemList2 = synonymFile.selectList(4, 2);
        assertEquals(1, itemList2.size());
        assertEquals(5, itemList2.getAllRecordCount());
        assertEquals(3, itemList2.getCurrentPageNumber());
        assertEquals(2, itemList2.getPageSize());