json string to map java example

import com.fasterxml.jackson.databind.ObjectMapper;


public class JsonMapExample {

    public static void main(String[] args) {

        ObjectMapper mapper = new ObjectMapper();
        String json = "{\"name\":\"jalapras\", \"age\":\"43\"}";

        try {

            // convert JSON string to Map
            Map<String, String> map = mapper.readValue(json, Map.class);

            System.out.println(map);

        } catch (IOException e) {   }

    }
}

Source : https://mkyong.com/java/how-to-convert-java-map-to-from-json-jackson/