How to read a configuration as a key value pair from appln.conf in Play Framework 2.3

How to read a configuration as a key value pair from appln.conf in Play Framework 2.3

The Play application.conf make use of

HOCON (Human-Optimized Config Object Notation) 

https://github.com/typesafehub/config/blob/master/HOCON.md

This is how the entry would look like in appln.conf

vehicle.config="{'car':'Toyota','truck':'FreightLiner','"

vehicle.config=${vehicle.config}"'van':'Ford','jeep':'Chrysler'}"

Java code would look like 

import com.google.gson.Gson;

import com.google.gson.reflect.TypeToken;

    private static final String CONFIG = Play.application()

            .configuration().getString("vehicle.config");

        Gson gson = new Gson();

        

        Type collectionType = new TypeToken

        MapconfigMap = gson.fromJson(CONFIG, collectionType);

Hope this helps :)