Package Summary Overview Summary

### class:ReferenceQueue [NONE]
public class ReferenceQueue<T>extends Object Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected. Since: 1.2

### constructor:ReferenceQueue() [NONE]
### ReferenceQueue public ReferenceQueue() Constructs a new reference-object queue.

### method:poll() [NONE]
### poll public Reference<? extends T> poll() Polls this queue to see if a reference object is available. If one is available without further delay then it is removed from the queue and returned. Otherwise this method immediately returns `null`. Returns: A reference object, if one was immediately available, otherwise `null`

### method:remove(long) [CHANGED]
### remove public Reference<? extends T> remove (long timeout) throws IllegalArgumentException,InterruptedException Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires. This method does not offer real-time guarantees: It schedules the timeout as if by invoking the `Object.wait(long)` method. Parameters: `timeout` - If positive, block for up to `timeout` milliseconds while waiting for a reference to be added to this queue. If zero, block indefinitely. Returns: A reference object, if one was available within the specified timeout period, otherwise `null` Throws: `IllegalArgumentException` - If the value of the timeout argument is negative `InterruptedException` - If the timeout wait is interrupted
### remove public Reference<? extends T> remove (long timeout) throws IllegalArgumentException, InterruptedException Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires. This method does not offer real-time guarantees: It schedules the timeout as if by invoking the `Object.wait(long)` method. Parameters: `timeout` - If positive, block for up to `timeout` milliseconds while waiting for a reference to be added to this queue. If zero, block indefinitely. Returns: A reference object, if one was available within the specified timeout period, otherwise `null` Throws: `IllegalArgumentException` - If the value of the timeout argument is negative `InterruptedException` - If the timeout wait is interrupted | ### remove public Reference<? extends T> remove (long timeout) throws InterruptedException Removes the next reference object in this queue, blocking until either one becomes available or the given timeout period expires. This method does not offer real-time guarantees: It schedules the timeout as if by invoking the `Object.wait(long)` method. Parameters: `timeout` - If positive, block for up to `timeout` milliseconds while waiting for a reference to be added to this queue. If zero, block indefinitely. Returns: A reference object, if one was available within the specified timeout period, otherwise `null` Throws: `IllegalArgumentException` - If the value of the timeout argument is negative `InterruptedException` - If the timeout wait is interrupted

### method:remove() [NONE]
### remove public Reference<? extends T> remove() throws InterruptedException Removes the next reference object in this queue, blocking until one becomes available. Returns: A reference object, blocking until one becomes available Throws: `InterruptedException` - If the wait is interrupted