Generic checks are bypassed by reflection. . . .

 

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

public class Demo01 {

public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub

List<Integer> list = new ArrayList<Integer>();
list.add(12);
list.add(13);
list.add(14);
System.out.println(list);

//获取字节码
Class clz = list.getClass();

//获取方法
Method m = clz.getMethod("add", Object.class);

//调用方法
m.invoke(list, "gyf");

System.out.println(list);
}

}