transform json native object to java map

JsonUtils.java

import sun.org.mozilla.javascript.internal.Context;
import sun.org.mozilla.javascript.internal.NativeArray;
import sun.org.mozilla.javascript.internal.NativeObject;
import sun.org.mozilla.javascript.internal.Scriptable;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class JsonUtils {

    public static Map mapFromScriptable(Scriptable obj){
        final Map<String, Object> map = new HashMap();
        for (Object propId : NativeObject.getPropertyIds(obj)){
            String key = propId.toString();
            Object value = NativeObject.getProperty(obj, key);
            map.put(key, parseValue(value));
        }
        return map;
    }

    private static Object parseValue(Object value){
        if (value instanceof NativeObject){
            return mapFromScriptable((NativeObject)value);
        }
        else if (value instanceof NativeArray){
            NativeArray array = (NativeArray)value;
            List<Map> listOfMaps = new ArrayList();
            for (Object element:array.getIds()){
                 int index = (Integer) element;
                listOfMaps.add(mapFromScriptable((Scriptable) array.get(index, null)));

            }
            return listOfMaps;
        }
        else {
            String strValue = value.toString();
            if(strValue.endsWith(".0")) strValue = strValue.substring(0, strValue.length()-2);
            return strValue;
        }

    }



    public static void main(String args[]){

        Context ctx = Context.enter();
        try {
               Scriptable scope = ctx.initStandardObjects();

            NativeObject result = (NativeObject) ctx.evaluateString(scope, "({\"test\":[{\"a\":1},{\"b\":2}]})","test",1,null) ;
              System.out.println(mapFromScriptable((Scriptable)result));

        }   finally{
            Context.exit();
        }



    }
}

sun.org.mozilla.javascript.internal.* classes linked from Java 6 rt.jar