disable the private method of JAVA reflection

public class Person { public String name;// 姓名 public int age;// 年龄

public Person() {
    super();
}

public Person(String name, int age) {
    super();
    this.name = name;
    this.age = age;
}

public String showInfo() {
    return "name=" + name + ", age=" + age;
}

}