public CacheEntry removeLast() {
Stopwatch stopWatch = SimonManager.getStopwatch("detail.removelast");
Split split = stopWatch.start();
CacheEntry next = lruQueue.peek();
if (next.size > slots.last().size) {
split.stop();
return null;
}
CacheEntry last = lruQueue.poll();
entries.remove(last.key);
split.stop();