Package java.lang.ref

Changed Classes
PhantomReference	Phantom reference objects which are enqueued after the collector determines that their referents may otherwise be reclaimed.
Reference	Abstract base class for reference objects.
ReferenceQueue	Reference queues to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.
SoftReference	Soft reference objects which are cleared at the discretion of the garbage collector in response to memory demand.
WeakReference	Weak reference objects which do not prevent their referents from being made finalizable finalized and then reclaimed.