A means of getting all subclasses of a class

Reflect.java

/**
 *  Assume class A; class B extends A; class C extends B;
 */ 
    public static void main(String[] args) throws ClassNotFoundException {
        A obj = new C();

        System.out.println(obj.getClass());
        Class.forName(String.valueOf(obj.getClass().getName()));
        System.out.println(GetClassesType(obj.getClass()));
    }



    public static List<Type> GetClassesType(Class cls) throws ClassNotFoundException {
        List<Type> clsList = new ArrayList<>();
        clsList.add(cls);
        Type name;
        while ((name = cls.getGenericSuperclass()) != java.lang.Object.class){
            clsList.add(name);
            cls = Class.forName(name.getTypeName());

        }
        return clsList;
    }

    public static List<String> GetClassesString(Class cls) throws ClassNotFoundException{
        List<String> strs = new ArrayList<>();
        GetClassesType(cls).forEach(item -> strs.add(item.getTypeName()));
        return strs;
    }