deserialising subclasses with jackson

deserialising.java

package main;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;

abstract class Parent {

    public String getType(){
        return this.getClass().getCanonicalName();
    }

    String serialize() throws JsonProcessingException { return new ObjectMapper().writeValueAsString(this);}
}

@JsonIgnoreProperties(ignoreUnknown = true)
class Son extends Parent {
    static Parent deserialize(String json) throws IOException {
        return new ObjectMapper().readValue(json, Son.class);
    }
}

@JsonIgnoreProperties(ignoreUnknown = true)
class Daughter extends Parent {
    static Parent deserialize(String json) throws IOException {
        return new ObjectMapper().readValue(json, Daughter.class);
    }
}

public class run {
    public static void main(String[] args) throws ClassNotFoundException, InvocationTargetException, IllegalAccessException, NoSuchMethodException, IOException {
        Parent[] events = new Parent[]{new Daughter(), new Son(), new Daughter(), new Son() };
        String[] serialisedEvents = new String[events.length];

        for(int i = 0; i < events.length; i++){
            serialisedEvents[i] = events[i].serialize();
        }

        Parent[] deserialisedEvents = new Parent[events.length];

        for(int i = 0; i < events.length; i++){
            String typeName = new ObjectMapper().readTree(serialisedEvents[i]).get("type").textValue();
            final Method deserialize = Class.forName(typeName).asSubclass(Parent.class).getDeclaredMethod("deserialize", new Class[]{String.class});
            int j = deserialize.getParameterCount();
            final Class<?>[] parameterTypes = deserialize.getParameterTypes();
            deserialisedEvents[i] = (Parent) deserialize.invoke(null, serialisedEvents[i]);
        }
        System.out.printf("events:\n%s%n", Arrays.toString(events));
        System.out.printf("serialized events:\n%s%n", Arrays.toString(serialisedEvents));
        System.out.printf("deserialized events:\n%s%n", Arrays.toString(deserialisedEvents));

    }
}