Fix Consors bank app crash

[nathan9513-aps]

Summary

Fixed a critical crash in the Consorsbank Banking App caused by a ClassCastException where a NullPointerException was being incorrectly cast to ApiException. The crash occurred when the Google Wallet API integration attempted to handle null status objects.

Problem Description

The Consorsbank Banking App (version 2.4.1) was crashing immediately after login on /e/OS 3.4-a15 with the following error:

FATAL EXCEPTION: main
Process: de.consorsbank, PID: 7618
java.lang.ClassCastException: java.lang.NullPointerException cannot be cast to com.google.android.gms.common.api.ApiException
    at de.consorsbank.neo.cards.data.repository.wallet.GoogleWalletApi$d.onComplete:109
    at com.google.android.gms.tasks.x.run:20
    at android.os.Handler.handleCallback(Handler.java:991)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loopOnce(Looper.java:232)
    at android.os.Looper.loop(Looper.java:317)
    at android.app.ActivityThread.main(ActivityThread.java:8934)

Root Cause Analysis

The crash was caused by multiple issues in GoogleSignIn.getSignedInAccountFromIntent():

1. Missing Status Import: The Status class was not imported, causing compilation errors
2. Null Status Handling: The code attempted to create ApiException from null Status objects without proper null checks
3. Missing Null Guard: No defensive programming against potential null returns from GoogleSignInCommon.getSignInResultFromIntent()

Solution Implemented

1. Added Missing Import

import com.google.android.gms.common.api.Status;

2. Enhanced Null Safety for Status Objects

Status status = signInResultFromIntent.getStatus();
if (!signInResultFromIntent.isSuccess() || signInAccount == null) {
    if (status == null) {
        return Tasks.forException(new ApiException(Status.INTERNAL_ERROR));
    } else {
        return Tasks.forException(new ApiException(status));
    }
}

3. Added Defensive Null Guard

GoogleSignInResult signInResultFromIntent = GoogleSignInCommon.getSignInResultFromIntent(data);
if (signInResultFromIntent == null) {
    return Tasks.forException(new ApiException(Status.INTERNAL_ERROR));
}