Fix unhandled exception when http code was below 400 (e.g. 302)

import java.lang.reflect.Type;

import okhttp3.MediaType;

import okhttp3.Protocol;

import okhttp3.Request;

import okhttp3.ResponseBody;

import okio.BufferedSource;

import retrofit2.Callback;

import retrofit2.Response;

/**

 *  Nextcloud SingleSignOn

 *

                    T body = nextcloudAPI.performRequestV2(resType, nextcloudRequest);

                    return Response.success(body);

                } catch (NextcloudHttpRequestFailedException e) {

                    return Response.error(e.getStatusCode(), ResponseBody.create(null, e.getCause().getMessage()));

                    ResponseBody body = ResponseBody.create(null, e.getCause().getMessage());

                    return Response.error(

                            body,

                            new okhttp3.Response.Builder()

                                    .body(body)

                                    .code(e.getStatusCode())

                                    .message(e.getCause().getMessage())

                                    .protocol(Protocol.HTTP_1_1)

                                    .request(new Request.Builder().url("http://localhost/" + nextcloudRequest.getUrl()).build())

                                    .build());

                } catch (Exception e) {

                    return Response.error(520, ResponseBody.create(null, e.toString()));

                }