第二章：方法区和运行时常量池溢出

public class Test {
 public static void main(String[] args) {
 int i =0;
 List<String> list = new ArrayList();
 while(true) {
 list.add(String.valueOf(i++).intern());
 }
 }
}

public class Test1 {
 public static void main(String[] args) {
 String str1 = new StringBuilder("111").append("-222").toString();
 System.out.println(str1.intern()==str1);
 String str2= new StringBuilder("jav").append("a").toString();;
 System.out.println(str2.intern()==str2);
 }
}
结果：
true
false 

public class Test1 {
public static void main(final String[] args) {
while(true){
Enhancer enhancer = new Enhancer();
enhancer.setSuperclass(OOMOBject.class);
enhancer.setUseCache(false);
enhancer.setCallback(new MethodInterceptor() {
@Override
public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
return methodProxy.invoke(objects,args);
}
});
enhancer.create();
}
}
static class OOMOBject{
 
}
}