package org.example;

import java.util.List;
import org.bson.codecs.pojo.ClassModel;

class Counter<T extends Number> {}

class Person<T extends Counter<?>> {
    public T counter;
}

class Pojo1 {
    public List<? extends Person<? extends Counter<?>>> persons;
}

class Pojo2 {
    public List<Person<? extends Counter<?>>> persons;
}

class Pojo3 {
    public List<Person<?>> persons;
}

class Pojo4 {
    public List<Person<? extends Counter>> persons;
}

class Pojo5 {
    public List<? extends Person> persons;
}

class Pojo6 {
    public List<? extends Person<?>> persons;
}

public class Main {

    public static void main(String[] args) {
        ClassModel.builder(Pojo1.class); // throws
        ClassModel.builder(Pojo2.class); // throws
        ClassModel.builder(Pojo3.class); // ok
        ClassModel.builder(Pojo4.class); // ok
        ClassModel.builder(Pojo5.class); // ok
        ClassModel.builder(Pojo6.class); // throws
    }

}