[Java] java.lang.OutOfMemoryError: Metaspace异常解决的方法

• 虚拟机加载的类信息
  
• 常量池
  
• 静态变量
  
• 即时编译后的代码
  

-XX:MaxMetaspaceSize=512m

java -XX:+PrintFlagsInitial

-XX:MetaspaceSize=10m -XX:MaxMetaspaceSize=10m

import org.springframework.cglib.proxy.Enhancer;
import org.springframework.cglib.proxy.MethodInterceptor;
import org.springframework.cglib.proxy.MethodProxy;
 
import java.lang.reflect.Method;
 
public class MetaspaceDemo {
static class OOM{}
public static void main(String[] args) {
int i = 0;//模拟计数多少次以后发生异常
try {
while (true){
i++;
Enhancer enhancer = new Enhancer();
enhancer.setSuperclass(OOM.class);
enhancer.setUseCache(false);
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();
}
} catch (Throwable e) {
System.out.println("=================多少次后发生异常："+i);
e.printStackTrace();
}
}
}