[BUG] App is crashing in the background on notification received event.

[amandshahu]

Describe the bug NullPointer exception on onPushNotificationReceived method of NotificationListener interface, due to it app is crashing. this is a background and random crash whenever a notification is received.

Exception or Stack Trace

java.lang.NullPointerException: Attempt to invoke interface method 'void com.microsoft.windowsazure.messaging.notificationhubs.NotificationListener.onPushNotificationReceived(android.content.Context, com.google.firebase.messaging.RemoteMessage)' on a null object reference
        at com.microsoft.windowsazure.messaging.notificationhubs.FirebaseReceiver.onMessageReceived(FirebaseReceiver.java:52)
        at com.google.firebase.messaging.FirebaseMessagingService.dispatchMessage(com.google.firebase:firebase-messaging@@22.0.0:13)
        at com.google.firebase.messaging.FirebaseMessagingService.passMessageIntentToSdk(com.google.firebase:firebase-messaging@@22.0.0:8)
        at com.google.firebase.messaging.FirebaseMessagingService.handleMessageIntent(com.google.firebase:firebase-messaging@@22.0.0:3)
        at com.google.firebase.messaging.FirebaseMessagingService.handleIntent(com.google.firebase:firebase-messaging@@22.0.0:3)
        at com.google.firebase.messaging.EnhancedIntentService.lambda$processIntent$0$EnhancedIntentService(com.google.firebase:firebase-messaging@@22.0.0:1)
        at com.google.firebase.messaging.EnhancedIntentService$$Lambda$0.run(Unknown Source:6)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at com.google.android.gms.common.util.concurrent.zza.run(com.google.android.gms:play-services-basement@@17.3.0:6)
        at java.lang.Thread.run(Thread.java:764)

To Reproduce Unable to understand the reproducing steps, we got to know only through Firebase Crashlytics.

Code Snippet Add the code snippet that causes the issue.

Expected behavior The crashes happening in the background, It should not be crash.

Screenshots

Setup (please complete the following information):

• OS: Any version of Android
• IDE: Android Studio 4.2.2
• Version of the Library used: 1.1.6

Additional context Add any other context about the problem here.

Information Checklist Kindly make sure that you have added all the following information above and checkoff the required fields otherwise we will treat the issuer as an incomplete report

• [X] Bug Description Added
• [X] Repro Steps Added
• [X] Setup information Added

[marstr]

Howdy - please review this thread: https://github.com/Azure/azure-notificationhubs-android/issues/191

If you believe it is the same issue:

• This is a big enough "gotcha" that we plan on updating the sample app and documentation to lead people away from this problem.
• We'll close this issue as a duplicate of the old one.

If you believe it is a different issue, please "@" mention me again and I'll take another look!

[amandshahu]

@marstr Thanks for the update, It is a duplicate issue hence I have closed it.