Java多线程与并发之ThreadLocal( 十 )_1.ThreadLocal是什么？使用场景ThreadL

private Entry getEntryAfterMiss(ThreadLocal<?> key int i Entry e) {Entry[ tab = table;int len = tab.length;while (e != null) {ThreadLocal<?> k = e.get();if (k == key)return e;if (k == null)//将过期的key清除掉，并把后面的元素（移动过位置的）往前移expungeStaleEntry(i);else//往后移一位i = nextIndex(i len);e = tab[i ;return null;