Почему Валидатор не пропускал вариант с while?

public class QuestionFileOutputStream implements AmigoOutputStream {
    private static AmigoOutputStream amigoOut;
    public QuestionFileOutputStream(AmigoOutputStream amigoOut) {
        this.amigoOut = amigoOut;
    }

    public QuestionFileOutputStream() {}
  @Override
    public void close() throws IOException {
        System.out.println("Вы действительно хотите закрыть поток? Д/Н");
        BufferedReader bfr = new BufferedReader(new InputStreamReader(System.in));
        String str;
//if (bfr.readLine().equals("Д")){
//    amigoOut.close();
//}
    while (!(str = bfr.readLine()).equals("Д")) {
    }
        while (amigoOut!=null) {
            amigoOut.close();
}
    }
//    public static void main(String[] args) throws IOException {
//        AmigoOutputStream amigoOuts = new QuestionFileOutputStream();
//        amigoOuts.close();
//    }
}