//exhibit a...
{
        Gson gson = new Gson();
        Type aType = new TypeToken<List<A>>(){}.getType();

        String contentString = result.getResponse().getContentAsString();
        List<A> results = gson.fromJson(contentString, aType);
}



        //exhibit b...
{
        Gson gson = new Gson();
        Type bType = new TypeToken<List<B>>(){}.getType();

        String contentString = result.getResponse().getContentAsString();
        List<B> results = gson.fromJson(contentString, bType);
}