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How does LinkedHashMap's access-order mode interact with SequencedMap methods?

A LinkedHashMap can be constructed with accessOrder = true, which changes its encounter order so that reading an entry via get() moves it to the end, rather than leaving the order fixed at insertion time.

LinkedHashMap<String, Integer> cache =
    new LinkedHashMap<>(16, 0.75f, true); // access-order enabled
cache.put("a", 1);
cache.put("b", 2);
cache.get("a"); // moves "a" to the end
System.out.println(cache.lastEntry()); // a=1

Because firstEntry(), lastEntry(), and reversed() all reflect whatever the current encounter order is, they behave dynamically under access-order mode - the "first" entry can change simply because something was read, not just because something was added or removed.

This access-order behavior is exactly what powers a classic LRU cache pattern: the least-recently-used entry is always firstEntry(), so it can be evicted with pollFirstEntry() whenever the cache needs to shrink.

With access-order enabled, calling get() on a LinkedHashMap entry:
Access-order mode combined with pollFirstEntry() is the basis for implementing:

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