pathMappingService = new PathMappingService() {
            @Override
            public List<org.codelibs.fess.opensearch.config.exentity.PathMapping> getPathMappingList(java.util.Collection<String> ptList) {
                return new ArrayList<>();
            }
        };
        crawler.pathMappingService = pathMappingService;

    //                                                                           Attribute
    //                                                                           =========
    @Resource
    private PathMappingService pathMappingService;
    @Resource
    private PathMapPager pathMapPager;

    // ===================================================================================

    @Resource
    protected DataIndexHelper dataIndexHelper;

    /** Injected service for managing path mappings during crawling. */
    @Resource
    protected PathMappingService pathMappingService;

    /** Injected service for managing crawling session information. */
    @Resource
    protected CrawlingInfoService crawlingInfoService;

    /**