| 软件包 | 描述 |
|---|---|
| java.lang.ref |
提供参考对象类，该类支持与垃圾收集器的交互作用有限的程度。
|
| Class and Description |
|---|
| Reference
引用对象的基类。
|
| ReferenceQueue
在检测到适当的可达性更改后，将引用队列添加到已注册的引用对象的引用队列中。
|
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