@Override
        public TimerTask next() {
            TimerTask timerTask = null;
            if (entry != root) {
                TimerTaskEntry nextEntry = entry.next;
                if (!entry.cancelled()) {
                    timerTask = entry.timerTask;
                }
                entry = nextEntry;
            }
            return timerTask;
        }
Instantiates a new Itr.

@param entry the entry
shenyu-common/src/main/java/org/apache/shenyu/common/timer/TimerTaskList.java