NullPointerException from GooglePlayServicesUtilWrapper.isGooglePlayServicesAvailable()

[q00t]

Hi

I'm seeing some crash reports with the following stack trace in firebase whilst using v20.2.0. They look to be from Chromebooks running Android 11.

Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.AbstractCollection.size()' on a null object reference
       at com.google.android.gms.internal.common.zzae.<init>(com.google.android.gms:play-services-basement@@18.9.0:1)
       at com.google.android.gms.internal.common.zzah.<clinit>(com.google.android.gms:play-services-basement@@18.9.0:1)
       at com.google.android.gms.internal.common.zzah.zzq(com.google.android.gms:play-services-basement@@18.9.0:2)
       at com.google.android.gms.internal.common.zzah.zzm(com.google.android.gms:play-services-basement@@18.9.0:2)
       at com.google.android.gms.common.zzn.<clinit>(com.google.android.gms:play-services-basement@@18.9.0:5)
       at com.google.android.gms.common.GoogleSignatureVerifier.zza(com.google.android.gms:play-services-basement@@18.9.0:6)
       at com.google.android.gms.common.GooglePlayServicesUtilLight.isGooglePlayServicesAvailable(com.google.android.gms:play-services-basement@@18.9.0:18)
       at com.google.android.gms.common.GoogleApiAvailabilityLight.isGooglePlayServicesAvailable(com.google.android.gms:play-services-basement@@18.9.0:2)
       at com.google.android.gms.common.GoogleApiAvailability.isGooglePlayServicesAvailable(com.google.android.gms:play-services-base@@18.9.0:2)
       at com.google.android.gms.common.GoogleApiAvailabilityLight.isGooglePlayServicesAvailable(com.google.android.gms:play-services-basement@@18.9.0:1)
       at com.google.android.gms.common.GoogleApiAvailability.isGooglePlayServicesAvailable(com.google.android.gms:play-services-base@@18.9.0:1)
       at com.urbanairship.google.GooglePlayServicesUtilWrapper.isGooglePlayServicesAvailable(GooglePlayServicesUtilWrapper.kt:25)
       at com.urbanairship.google.PlayServicesUtils.isGooglePlayServicesAvailable(PlayServicesUtils.kt:142)
       at com.urbanairship.push.fcm.FcmPushProvider.isAvailable(FcmPushProvider.java:65)
       at com.urbanairship.PushProviders.init(PushProviders.kt:37)
       at com.urbanairship.PushProviders.access$init(PushProviders.kt:14)
       at com.urbanairship.PushProviders$Companion.load(PushProviders.kt:198)
       at com.urbanairship.PushProviders$LazyLoader.get(PushProviders.kt:176)
       at com.urbanairship.PushProviders$Companion.lazyLoader$lambda$0(PushProviders.kt:207)
       at com.urbanairship.push.PushManager.resolvePushProvider(PushManager.kt:332)
       at com.urbanairship.push.PushManager.updateManagerEnablement(PushManager.kt:298)
       at com.urbanairship.push.PushManager.init(PushManager.kt:235)
       at com.urbanairship.AirshipInstance.initModules(AirshipInstance.kt:384)
       at com.urbanairship.AirshipInstance.executeTakeOff(AirshipInstance.kt:123)
       at com.urbanairship.AirshipInstance.takeOff$lambda$0(AirshipInstance.kt:90)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
       at com.urbanairship.util.AirshipThreadFactory.newThread$lambda$0(AirshipThreadFactory.kt:19)
       at java.lang.Thread.run(Thread.java:923)

[rlepinski]

That is deep within googles code so the issue should be for them, but we can see if we can work around it. Can you verify the version, I would expect FCMPushProvider to be kotlin in 20.2.0 and it should actually catch that exception:

override fun isAvailable(context: Context): Boolean {
        try {
            val playServicesStatus = PlayServicesUtils.isGooglePlayServicesAvailable(context)
            if (ConnectionResult.SUCCESS != playServicesStatus) {
                UALog.i("Google Play services is currently unavailable.")
                return false
            }
        } catch (e: Exception) {
            UALog.e(e, "Unable to register with FCM.")
            return false
        }
        return true
    }

[rlepinski]

AirshipInstance is from 20.x but your push provider seems to be stuck on an older version. We made a change to it in 13.x to catch all exceptions - 72871d0#diff-8222b77169f37fb7bcd36f4ca5bdfc17e51f59c7b6ba0f62ee6c6d0ff7598552

Can you run ./gradlew app:dependencies to get what version its resolving