java_OOM

1、java.lang.StackOverflowError

2、java.lang.OutOfMemoryError：java heap space

3、java.lang.OutOfMemoryError：GC overhead limit exceeded

4、java.lang.OutOfMemoryError：Direct buffer memory

5、java.lang.OutOfMemoryError：unable to create new native thread

6、java.lang.OutOfMemoryError：Metaspace

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 MetaspaceOOMTest {
    static class OOMTest { }
    public static void main(String[] args) throws InterruptedException {
        int i = 0;
        try {
            while (true) {
                i++;
                Enhancer enhancer = new Enhancer();
                enhancer.setSuperclass(OOMTest.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("*****第 i：" + i + " 次后发生异常！");
            e.printStackTrace();
        }
    }
}