public Object pollLast() { Map.Entry e = map.pollLastEntry(); return (e != null) ? e.getKey() : null; }
public Object pollLast() { Map.Entry e = map.pollLastEntry(); return (e != null) ? e.getKey() : null; }
public Object pollLast() { Map.Entry e = map.pollLastEntry(); return (e != null) ? e.getKey() : null; }