In my `CountryInfoActivity.java` I have an `Async Class` which retrieves a **JSON** from this website: <https://pt.wikipedia.org/w/api.php?format=json&action=query&prop=extracts&exintro=&explaintext=&titles=Portugal>.
It then parses the `extract` node into a String so I can set it in my TextView.
The problem is, whenever I set the text in the text view, **my app crashes**. The JSON parse is correct as it is retrieving all the information I want...

These are the classes I use to retrieve the data and, in the last one I try to set the data `textoSobrePais` into my TextView... By the way, in my **onCreate method** I called the class this way `new DownloadTask().execute(url);`

```
public class DownloadTask extends AsyncTask<String,Integer,Void>{
@Override
protected Void doInBackground(String... params) {
    String url = params[0];
    getJSONFromURL(url);
    return null;
}
}

public String getJSONFromURL(String url){
    String json_string = null;
    try{
        URL obj = new URL(url);
        HttpURLConnection http = (HttpURLConnection) obj.openConnection();
        http.setRequestMethod("GET");
        int response = http.getResponseCode();
        Log.i("response",Integer.toString(response));
        BufferedReader reader  = new BufferedReader(new InputStreamReader(http.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine())!= null){
            sb.append(line+"\n");
        }
        reader.close();

        json_string = sb.toString();
        Log.i("json_string",json_string);
    } catch (UnsupportedEncodingException e){
        e.printStackTrace();
    } catch (ClientProtocolException e){
        e.printStackTrace();
    } catch (IOException e){
        e.printStackTrace();
    }
    ParseJson(json_string);
    return null;

}

public void ParseJson (String json){

JSONObject obj = null;
try {
    obj = new JSONObject(json);
} catch (JSONException e) {
    e.printStackTrace();
}
try {
    JSONArray pageIdObj = obj.getJSONObject("query").getJSONObject("pages").names();
    String page =  String.valueOf(pageIdObj.get(0));
    Log.i("ASdasd",page);
    textoSobrePais = obj.getJSONObject("query").getJSONObject("pages").getJSONObject(page).getString("extract");
    page = "";
    Log.i("texte",textoSobrePais);
    txtInfoPais = findViewById(R.id.txtInfoPais);
    txtInfoPais.setText(textoSobrePais);
} catch (JSONException e) {
    e.printStackTrace();
}

}

```

This is the error that is giving me when it crashes:
<https://pastebin.com/PJh5r36u>

Can somebody help, please?