/** @param cnt Count. */ private void checkRemove(int cnt) { init(); Collection<Long> set = new HashSet<>(cnt); for (int i = 0; i < cnt; i++) assertTrue(set.add(lru.offer(0, i, i))); assertEquals(cnt, lru.size()); for (long addr : set) lru.remove(addr); assertEquals(0, lru.size()); }