PermSize

crossoverJie · crossoverJie · commit 77b2d7bda011 · 2017-12-30T00:37:46.000+08:00
diff --git a/MD/OOM-analysis.md b/MD/OOM-analysis.md
@@ -41,3 +41,6 @@ Process finished with exit code 1
 
 ## 方法区/运行时常量池溢出
 
+> `JDK8` 中将永久代移除，使用 MetaSpace 来保存类加载之后的类信息。
+
+`PermSize` 和 `MaxPermSize` 已经不能使用了，在 JDK8 中配置这两个参数将会发出警告。
diff --git a/src/main/java/com/crossoverjie/oom/heap/PermGenOOM.java b/src/main/java/com/crossoverjie/oom/heap/PermGenOOM.java
@@ -0,0 +1,26 @@
+package com.crossoverjie.oom.heap;
+
+import com.crossoverjie.proxy.jdk.CustomizeHandle;
+import com.crossoverjie.proxy.jdk.ISubject;
+import com.crossoverjie.proxy.jdk.impl.ISubjectImpl;
+
+import java.lang.reflect.Proxy;
+
+/**
+ * Function:方法区内存溢出
+ *
+ * @author crossoverJie
+ *         Date: 29/12/2017 21:34
+ * @since JDK 1.8
+ */
+public class PermGenOOM {
+
+    public static void main(String[] args) {
+        while (true){
+            CustomizeHandle handle = new CustomizeHandle(ISubjectImpl.class) ;
+            ISubject subject = (ISubject) Proxy.newProxyInstance(PermGenOOM.class.getClassLoader(), new Class[]{ISubject.class}, handle);
+            subject.execute() ;
+
+        }
+    }
+}
