Package java.lang.ref
Contains core language classes related to object references & garbage collection.
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Class Summary Class Description Reference<T> Abstract base class for reference objects.ReferenceQueue<T> Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.WeakReference<T> Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.