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Update jvm-garbage-collection.md #2828

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2 changes: 1 addition & 1 deletion docs/java/jvm/jvm-garbage-collection.md
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Expand Up @@ -333,7 +333,7 @@ PhantomReference phantomReference2 = new PhantomReference(new String("abc"), que

### 如何判断一个常量是废弃常量？

运行时常量池主要回收的是废弃的常量。那么，我们如何判断一个常量是废弃常量呢？
字符串常量池主要回收的是废弃的常量。那么，我们如何判断一个常量是废弃常量呢？

~~**JDK1.7 及之后版本的 JVM 已经将运行时常量池从方法区中移了出来，在 Java 堆（Heap）中开辟了一块区域存放运行时常量池。**~~

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