类AckRequestMgr是不是有bug

[csoftware]

1. bug所在

    @Override
    public void run() {
        queue.remove(sessionId);
        timeout();
    }
   

2. bug的修复

        @Override
        public void run() {
            RequestTask requestTask = queue.remove(sessionId);
            if (requestTask != null) {
                timeout();
            }
        }