2_LinkedTreeMap_error_retrofit_article_a

Retrofit retrofit = new Retrofit.Builder().baseUrl(Navigation_Url).addConverterFactory(GsonConverterFactory.create()).build();
CountryArrayAPI api = retrofit.create(CountryArrayAPI.class);
Call<List> call = api.getCountries();


call.enqueue(new Callback<List>() {
    @Override
    public void onResponse(Call<List> call, Response<List> response) {
        Gson gson = new Gson();
        try {
            // unchecked cast and it's bad
             ArrayList<ListPojo> listPojos = (ArrayList) response.body();
            
            listRetrofitAndroid = new ListRetrofitAndroid(getApplicationContext(), listPojos);
            listView.setAdapter(listRetrofitAndroid);

        } catch (Exception e) {
            Log.d("onResponse", "There is an error");
            e.printStackTrace();
        }
    }
    @Override
    public void onFailure(Call<List> call, Throwable t) {
        Log.d("Failure", t.toString());
    }
});