PagingList<ProtwordsItem> list = protwordsFile.selectList(100, 10);
        assertEquals(0, list.size());
        assertTrue(list.isEmpty());
    }

    public void test_selectList_negativeOffset() {
        // Load data first
        protwordsFile.reload(null);

        // Test with negative offset
        PagingList<ProtwordsItem> list = protwordsFile.selectList(-1, 10);
        assertEquals(0, list.size());
    }

    }

    // Test selectList method with valid data
    public void test_selectList_validData() throws Exception {
        writeTestFile("a,b => c\nd,e => f\ng,h => i\n");

        // Get all items
        PagingList<CharMappingItem> result1 = charMappingFile.selectList(0, 10);
        assertEquals(3, result1.size());

        assertTrue(result.isPresent());
        assertNotNull(stopwordsFile.stopwordsItemList);
    }

    // Test selectList method
    public void test_selectList_normalCase() {
        loadTestData();

        DictionaryFile.PagingList<StopwordsItem> result = stopwordsFile.selectList(0, 2);
        assertEquals(2, result.size());
        assertEquals(1, result.getCurrentPageNumber());

     */
    public void storeAllElevateWords(final boolean apply) {
        deleteAllElevateWord(apply);

        final List<ElevateWord> list = ComponentUtil.getComponent(ElevateWordBhv.class).selectList(cb -> {
            cb.query().matchAll();
            cb.fetchFirst(ComponentUtil.getFessConfig().getPageElevateWordMaxFetchSizeAsInteger());
        });

        for (final ElevateWord elevateWord : list) {

     */
    public OptionalEntity<ElevateWord> getElevateWord(final String id) {
        return elevateWordBhv.selectByPK(id).map(entity -> {

            final List<ElevateWordToLabel> wctltmList = elevateWordToLabelBhv.selectList(wctltmCb -> {
                wctltmCb.query().setElevateWordId_Equal(entity.getId());
                wctltmCb.fetchFirst(fessConfig.getPageLabeltypeMaxFetchSizeAsInteger());
            });

        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));

        return getProtwordsFile(dictId).map(file -> {
            final int pageSize = protwordsPager.getPageSize();
            final PagingList<ProtwordsItem> protwordsList =
                    file.selectList((protwordsPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

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

        return getStemmerOverrideFile(dictId).map(file -> {
            final int pageSize = stemmerOvberridePager.getPageSize();
            final PagingList<StemmerOverrideItem> stemmerOvberrideList =
                    file.selectList((stemmerOvberridePager.getCurrentPageNumber() - 1) * pageSize, pageSize);

            // update pager

        return getCharMappingFile(dictId).map(file -> {
            final int pageSize = charMappingPager.getPageSize();
            final PagingList<CharMappingItem> charMappingList =
                    file.selectList((charMappingPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

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

        return getStopwordsFile(dictId).map(file -> {
            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));