jacksonInheritence.java

///usr/bin/env jbang "$0" "$@" ; exit $?
//DEPS com.fasterxml.jackson.core:jackson-databind:2.15.2

import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.List;

class Task {
    public String name;
}
class TimedTask extends Task {
    public int duration;
}
class Employee {
    public int id;
    public List<Task> tasks;
}
class Manager extends Employee {
    public List<TimedTask> tasks;
}

public class jacksonInheritence {

    public static void main(String... args) throws Exception {
        String managerString = "{ \"id\": 1, \"tasks\": [ { \"duration\": 7 } ]}";

        ObjectMapper mapper = new ObjectMapper();
        Manager manager = mapper.readValue(managerString, Manager.class);

        System.out.println(manager.id);
    }
}