public String fromObject(Object obj,
    String resultCode,
    Writer stream) throws IOException 
{
        if (obj != null) {
            if (isArray(obj)) {
                JSONArray jsonArray = JSONArray.fromObject(obj);
                stream.write(jsonArray.toString());
            } else {
                JSONObject jsonObject = JSONObject.fromObject(obj);
                stream.write(jsonObject.toString());
            }
        }
        return null;
}

 public String getContentType() 
{
        return "text/javascript";
}

 public String getExtension() 
{
        return "json";
}

 public  void toObject(Reader in,
    Object target) throws IOException 
{
        StringBuilder sb = new StringBuilder();
        char[] buffer = new char[1024];
        int len = 0;
        while ((len = in.read(buffer))  > 0) {
            sb.append(buffer, 0, len);
        }
        if (target != null && sb.length()  > 0 && sb.charAt(0) == '[') {
            JSONArray jsonArray = JSONArray.fromObject(sb.toString());
            if (target.getClass().isArray()) {
                JSONArray.toArray(jsonArray, target, new JsonConfig());
            } else {
                JSONArray.toList(jsonArray, target, new JsonConfig());
            }
        } else {
            JSONObject jsonObject = JSONObject.fromObject(sb.toString());
            JSONObject.toBean(jsonObject, target, new JsonConfig());
        }
}