dump whatever object type you want to console output, inspired by https://dzone.com/articles/introduction-to-json-with-java

DevTools.java

package helper;

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

public final class DevTools
{
    public static String dump(Object stuff) throws JsonProcessingException {
        System.out.println(convertObject(stuff));
        return null;
    }

    public static String dump(Object stuff, String prefix) throws JsonProcessingException {
        System.out.println(prefix + " - " + convertObject(stuff));
        return null;
    }

    public static String dump(String stuff) {
        System.out.println(stuff);
        return null;
    }

    public static String dump(String stuff, String prefix) {
        System.out.println(prefix + " - " + stuff);
        return null;
    }

    private static String convertObject(Object stuff) throws JsonProcessingException {
        ObjectMapper mapper = new ObjectMapper();
        return mapper.writeValueAsString(stuff);
    }
}