/** The product version string. */
    protected String productVersion;

    /** The end-of-life timestamp for the application. */
    protected long eolTime;

    private short systemCpuPercent;

    private long systemCpuCheckTime;

    private long systemCpuCheckInterval = 1000L;

    /** A map of listeners for configuration updates. */

     * @return an OptionalEntity containing the mapping item if found, empty otherwise
     */
    @Override
    public OptionalEntity<CharMappingItem> get(final long id) {
        if (mappingItemList == null) {
            reload(null);
        }

        for (final CharMappingItem mappingItem : mappingItemList) {
            if (id == mappingItem.getId()) {

            final OptionalThing<FessUserBean> userBean) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long startTime = systemHelper.getCurrentTimeAsLong();
        final long requestedTime = startTime;

        final SearchRequestParams params = rewrite(searchRequestParams);

        LaRequestUtil.getOptionalRequest().ifPresent(request -> {

        return STEMMER_OVERRIDE;
    }

    @Override
    public String getPath() {
        return path;
    }

    @Override
    public synchronized OptionalEntity<StemmerOverrideItem> get(final long id) {
        if (stemmerOverrideItemList == null) {
            reload(null);
        }

        for (final StemmerOverrideItem stemmerOverrideItem : stemmerOverrideItemList) {