JAXB - 未编组的字段为空

JAXB - 未编组的字段为空

java
@XmlRootElement
public class Person {
    private String name;
    private int age;
    private List hobbies;
    public Person() {
    }
    public Person(String name, int age, List hobbies) {
        this.name = name;
        this.age = age;
        this.hobbies = hobbies;
    }
    @XmlElement
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    @XmlElement
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    @XmlElementWrapper(name = "hobbies")
    @XmlElement(name = "hobby")
    public List getHobbies() {
        return hobbies;
    }
    public void setHobbies(List hobbies) {
        this.hobbies = hobbies;
    }
}

xml
    John Doe
    30
    

java
public class Main {
    public static void main(String[] args) throws JAXBException {
        File file = new File("person.xml");
        JAXBContext jaxbContext = JAXBContext.newInstance(Person.class);
        Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
        Person person = (Person) jaxbUnmarshaller.unmarshal(file);
        System.out.println("Name: " + person.getName());
        System.out.println("Age: " + person.getAge());
        System.out.println("Hobbies: " + person.getHobbies());
    }
}

Name: John Doe
Age: 30
Hobbies: []