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## com.google.common.base
Class FinalizablePhantomReference<T>

    java.lang.Object
      java.lang.ref.Reference<T>
          java.lang.ref.PhantomReference<T>
              com.google.common.base.FinalizablePhantomReference<T>

All Implemented Interfaces:
  FinalizableReference

    public abstract class FinalizablePhantomReference<T>

extends PhantomReference<T>
implements FinalizableReference

Phantom reference with a `finalizeReferent()` method which a background thread invokes after the garbage collector reclaims the referent. This is a simpler alternative to using a `ReferenceQueue`.

Unlike a normal phantom reference, this reference will be cleared automatically.

Since:
  2.0 (imported from Google Collections Library)
Author:
  Bob Lee

Constructor Summary
`protected` | `FinalizablePhantomReference(T referent, FinalizableReferenceQueue queue)` Constructs a new finalizable phantom reference.

Method Summary

Methods inherited from class java.lang.ref.PhantomReference
`get`

Methods inherited from class java.lang.ref.Reference
`clear, enqueue, isEnqueued`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface com.google.common.base.FinalizableReference
`finalizeReferent`

Constructor Detail

### FinalizablePhantomReference

    protected FinalizablePhantomReference(T referent,
                                          FinalizableReferenceQueue queue)

  Constructs a new finalizable phantom reference.

  Parameters:
    `referent` - to phantom reference
    `queue` - that should finalize the referent

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