Here is an example of how to use the JsonDeserialize annotation to deserialize JSON to a Java object using the Jackson library:

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.ObjectMapper;

public class Example {
    public static void main(String[] args) throws IOException {
        String json = "{\"name\":\"John\",\"age\":30}";
        
        ObjectMapper objectMapper = new ObjectMapper();
        Person person = objectMapper.readValue(json, Person.class);
        
        System.out.println(person.getName());
        System.out.println(person.getAge());
    }

    public static class Person {
        private String name;
        private int age;

        @JsonDeserialize(using = CustomDateDeserializer.class)
        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getAge() {
            return age;
        }

        public void setAge(int age) {
            this.age = age;
        }
    }
}

You should also define a custom deserializer that implements JsonDeserializer interface and use @JsonDeserialize(using = CustomDeserializer.class) to apply it to the field you want to deserialize.