使用POST请求中的嵌套JSON，无法将嵌套JSON分配给我的类

import com.fasterxml.jackson.databind.ObjectMapper;

public class MyClass {
    private String name;
    private int age;
    private MyNestedClass nested;

    // getters and setters

    public static class MyNestedClass {
        private String nestedProperty;

        // getters and setters
    }

    public static void main(String[] args) {
        String json = "{\"name\":\"John\",\"age\":30,\"nested\":{\"nestedProperty\":\"value\"}}";

        try {
            ObjectMapper objectMapper = new ObjectMapper();
            MyClass myObject = objectMapper.readValue(json, MyClass.class);

            System.out.println(myObject.getName()); // output: John
            System.out.println(myObject.getAge()); // output: 30
            System.out.println(myObject.getNested().getNestedProperty()); // output: value
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}