| Class and Description |
|---|
| EnqueuedWeakReference
EnqueuedWeakReference are objects that are queued in an ReferenceQueue by the system when the
object they point at (see
Reference.get()) is set to null by
the system. |
| ReferenceQueue
ReferenceQueue represents a queue of EnqueuedWeakReference.
|
| Timer
A facility for threads to schedule tasks for future execution in a background thread.
|
| TimerTask
A task that can be scheduled for one-time or repeated execution by a Timer.
|