Is it possible to access to java.util.LinkedList node directly, and manually swap two nodes by change next and prev links?

CodePudding user response：

No. The node is not publicly accessible, and it's an implementation detail that may change or even disappear in a given Java runtime.

Yes. With sufficient effort and ongoing care, you can use reflection to manipulate the normally inaccessible innards of a particular implementation.

I suspect this might be an XY problem, and if you described your goal, it might be that a different collection would work better.

For an LRU cache, you could use LinkedHashMap, with the access-order flag set.