Java 骆驼聚集等待锁

我有一个Camel 2.25.0路由，它监听一个在密钥上聚合的JMS队列。聚合配置有10分钟的完成超时、一个

LevelDBAggregationRepository

和

UselateStaggegationStrategy

from("jms:inbound")
        .log("Received views change stream")
        .bean(viewService, "updateDependencies")
        .aggregate()
        .header("JMSXGroupID")
        .aggregationStrategy(new UseLatestAggregationStrategy())
        .completionTimeout(600000) // 10 minutes
        .completeAllOnStop()
        .aggregationRepository(new LevelDBAggregationRepository("aggregation-repository", "./aggregation-repository"))
        .log("Process views change stream")
        .to("jms:outbound");

有时，线程会被阻塞，队列不会被占用。当发生这种情况时，日志显示在

updateDependencies

调用和聚合开始之间存在等待

XXXX

是上一次聚合的结束，

yyy

是阻止的聚合

APM duration: 1,073.2s
August 7th 2020, 11:39:20.327   onAggregation +++  end  +++ with correlation key: XXXX
August 7th 2020, 11:39:20.327   Received views change stream
August 7th 2020, 11:39:20.341   1 documents touched based on update // log from updateDependencies
August 7th 2020, 11:57:13.555   onAggregation +++ start +++ with correlation key: YYYY

在聚合处理器中，聚合前有一个锁

lock.lock();
try {
    aggregated = doAggregation(key, copy);
} finally {
    lock.unlock();
}

我的猜测是等待时间是由于锁造成的，但这没有意义，因为我们可以看到前面的聚合（

XXXX

）已经完成，所以应该释放锁

我还检查了应用程序，其他线程仍在运行