我正在尝试让Akka进入我的Java项目，并且我挂了一个Scala的Seq类型的小问题。我可以将ActorRef的Java列表转换为scala.collection.Seq，但是我要使用的Akka
API需要一个scala.collection.immutable.Seq。我该怎么做？

码：

static class Router extends UntypedLoadBalancer {
    private final InfiniteIterator<ActorRef> workers;

    public Router(List<ActorRef> workers) {
        Seq workerSeq = asScalaBuffer(workers);

        // how to get from the scala.collection.Seq above to the instance of
        // scala.collection.immutable.Seq required by CyclicIterator below?
        this.workers = new CyclicIterator<ActorRef>();
    }

    public InfiniteIterator<ActorRef> seq() {
        return workers;
    }
}