// update pager
            BeanUtil.copyBeanToBean(stopwordsList, stopwordsPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));
            stopwordsList.setPageRangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
            stopwordsPager.setPageNumberList(stopwordsList.createPageNumberList());

            return (List<StopwordsItem>) stopwordsList;
        }).orElse(Collections.emptyList());
    }

    /**

            // update pager
            BeanUtil.copyBeanToBean(synonymList, synonymPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));
            synonymList.setPageRangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
            synonymPager.setPageNumberList(synonymList.createPageNumberList());

            return (List<SynonymItem>) synonymList;
        }).orElse(Collections.emptyList());
    }

    /**

        duplicateHostPager.setPageNumberList(duplicateHostList.pageRange(op -> {
            op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
        }).createPageNumberList());

        return duplicateHostList;
    }

    /**
     * Retrieves a duplicate host configuration by its unique identifier.
     *

        webAuthenticationPager.setPageNumberList(webAuthenticationList.pageRange(op -> {
            op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
        }).createPageNumberList());

        return webAuthenticationList;
    }

    /**
     * Gets a web authentication configuration by its ID.
     *

        fileAuthenticationPager.setPageNumberList(fileAuthenticationList.pageRange(op -> {
            op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
        }).createPageNumberList());

        return fileAuthenticationList;
    }

    /**
     * Retrieves a specific file authentication configuration by its ID.
     *

        requestHeaderPager.setPageNumberList(requestHeaderList.pageRange(op -> {
            op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
        }).createPageNumberList());

        return requestHeaderList;
    }

    /**
     * Retrieves a specific request header by its ID.
     *

        failureUrlPager.setPageNumberList(failureUrlList.pageRange(op -> {
            op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
        }).createPageNumberList());

        return failureUrlList;
    }

    /**
     * Retrieves a specific failure URL by its ID.
     *

        keyMatchPager.setPageNumberList(keyMatchList.pageRange(op -> {
            op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
        }).createPageNumberList());

        return keyMatchList;
    }

    /**
     * Get a key match.
     *
     * @param id The ID of the key match.

        fileConfigPager.setPageNumberList(fileConfigList.pageRange(op -> {
            op.rangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
        }).createPageNumberList());

        return fileConfigList;
    }

    /**
     * Deletes a file configuration and its associated authentication records.

            // update pager
            BeanUtil.copyBeanToBean(protwordsList, protwordsPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));
            protwordsList.setPageRangeSize(fessConfig.getPagingPageRangeSizeAsInteger());
            protwordsPager.setPageNumberList(protwordsList.createPageNumberList());

            return (List<ProtwordsItem>) protwordsList;
        }).orElse(Collections.emptyList());
    }

    /**