方法区内存溢出

Author: xiaolyuh123

spring-boot-student-jvm/src/main/java/com/xiaolyuh/MethodAreaOutOfMemoryErrorTest.java

@@ -0,0 +1,38 @@
+package com.xiaolyuh;
+
+import org.springframework.cglib.proxy.Enhancer;
+import org.springframework.cglib.proxy.MethodInterceptor;
+import org.springframework.cglib.proxy.MethodProxy;
+
+import java.lang.reflect.Method;
+
+/**
+ * java 方法区的内存溢出
+ * <p>
+ * VM Args JDK 1.6: set JAVA_OPTS=-verbose:gc -XX:PermSize10 -XX:MaxPermSize10m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=D:\dump
+ *
+ * @author yuhao.wang3
+ * @since 2019/11/30 17:09
+ */
+public class MethodAreaOutOfMemoryErrorTest {
+
+    class MethodAreaOOM {
+    }
+
+    public static void main(String[] args) {
+        MethodAreaOutOfMemoryErrorTest h = new MethodAreaOutOfMemoryErrorTest();
+        while (true) {
+            Enhancer enhancer = new Enhancer();
+            enhancer.setSuperclass(MethodAreaOOM.class);
+            enhancer.setCallback(new MethodInterceptor() {
+                @Override
+                public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
+                    return methodProxy.invokeSuper(o, args);
+                }
+            });
+            enhancer.create();
+        }
+    }
+}
+
+

spring-boot-student-jvm/src/test/java/com/xiaolyuh/MethodAreaOutOfMemoryErrorTest.java

@@ -0,0 +1,38 @@
+package com.xiaolyuh;
+
+import org.springframework.cglib.proxy.Enhancer;
+import org.springframework.cglib.proxy.MethodInterceptor;
+import org.springframework.cglib.proxy.MethodProxy;
+
+import java.lang.reflect.Method;
+
+/**
+ * java 方法区的内存溢出
+ * <p>
+ * VM Args JDK 1.6: set JAVA_OPTS=-verbose:gc -XX:PermSize10 -XX:MaxPermSize10m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=D:\dump
+ *
+ * @author yuhao.wang3
+ * @since 2019/11/30 17:09
+ */
+public class MethodAreaOutOfMemoryErrorTest {
+
+    class MethodAreaOOM {
+    }
+
+    public static void main(String[] args) {
+        MethodAreaOutOfMemoryErrorTest h = new MethodAreaOutOfMemoryErrorTest();
+        while (true) {
+            Enhancer enhancer = new Enhancer();
+            enhancer.setSuperclass(MethodAreaOOM.class);
+            enhancer.setCallback(new MethodInterceptor() {
+                @Override
+                public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
+                    return methodProxy.invokeSuper(o, args);
+                }
+            });
+            enhancer.create();
+        }
+    }
+}
+
+

spring-boot-student-okhttp/src/main/java/com/xiaolyuh/SpringBootStudentOkhttpApplication.java

@@ -7,6 +7,6 @@
 public class SpringBootStudentOkhttpApplication {
 
     public static void main(String[] args) {
-        SpringApplication.run(SpringBootStudentValidatedApplication.class, args);
+        SpringApplication.run(SpringBootStudentOkhttpApplication.class, args);
     }
 }