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Uses of Class
java.lang.ref.Reference

Packages that use Reference

Package	Description
java.lang.ref	Provides reference-object classes, which support a limited degree of interaction with the garbage collector.

Uses of Reference in java.lang.ref

Subclasses of Reference in java.lang.ref

Modifier and Type	Class and Description
class	PhantomReference<T> Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.
class	SoftReference<T> Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.
class	WeakReference<T> Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.

Methods in java.lang.ref that return Reference

Modifier and Type	Method and Description
Reference<? extends T>	ReferenceQueue.poll() Polls this queue to see if a reference object is available.
Reference<? extends T>	ReferenceQueue.remove() Removes the next reference object in this queue, blocking until one becomes available.
Reference<? extends T>	ReferenceQueue.remove(long timeout) Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires.