String name = bean.getKey() instanceof com.google.inject.name.Named n ? n.value() : "";
                        map.compute(name, (n, ob) -> ob == null || ob.getPriority() < b.getPriority() ? b : ob);
                    }
                }
                //noinspection unchecked
                return (Q) map(map, this::getInstance);
            };
        }

        TestScoreBooster booster1 = new TestScoreBooster(100L);
        booster1.setPriority(1);
        TestScoreBooster booster2 = new TestScoreBooster(200L);
        booster2.setPriority(1);
        TestScoreBooster booster3 = new TestScoreBooster(300L);
        booster3.setPriority(1);

        scoreUpdater.addScoreBooster(booster1);
        scoreUpdater.addScoreBooster(booster2);

            threads[i] =
                    new Thread(crawlerThreadGroup, crawlerThread, "Crawler-" + crawlerContext.sessionId + "-" + Integer.toString(i + 1));
            threads[i].setDaemon(daemon);
            threads[i].setPriority(threadPriority);
        }

        // run
        crawlerContext.setStatus(CrawlerStatus.RUNNING);
        if (logger.isInfoEnabled()) {

            initParamMap.put(Constants.CRAWLING_INFO_ID, sid);

            final DataCrawlingThread dataCrawlingThread = new DataCrawlingThread(dataConfig, indexUpdateCallback, initParamMap);
            dataCrawlingThread.setPriority(crawlerPriority);
            dataCrawlingThread.setName(sid);
            dataCrawlingThread.setDaemon(true);

            dataCrawlingThreadList.add(dataCrawlingThread);

        }

        // run index update
        final IndexUpdater indexUpdater = ComponentUtil.getIndexUpdater();
        indexUpdater.setName("IndexUpdater");
        indexUpdater.setPriority(indexUpdaterPriority);
        indexUpdater.setSessionIdList(sessionIdList);
        indexUpdater.setDaemon(true);
        indexUpdater.setCrawlerList(crawlerList);

    // Sleep for enough time to add 1500 milliseconds of overwait to the get() call.
    long toWaitMillis = 3500 - NANOSECONDS.toMillis(System.nanoTime() - thread.startTime);
    Thread.sleep(toWaitMillis);
    thread.setPriority(Thread.MAX_PRIORITY);
    Thread.class.getMethod("resume").invoke(thread);
    thread.join();
    // It's possible to race and suspend the thread just before the park call actually takes effect,

    // Sleep for enough time to add 1500 milliseconds of overwait to the get() call.
    long toWaitMillis = 3500 - NANOSECONDS.toMillis(System.nanoTime() - thread.startTime);
    Thread.sleep(toWaitMillis);
    thread.setPriority(Thread.MAX_PRIORITY);
    Thread.class.getMethod("resume").invoke(thread);
    thread.join();
    // It's possible to race and suspend the thread just before the park call actually takes effect,