Recently I got feedback and also I was able to reproduce it easily on my Nexus 5 with cleared app data. Simply, when adding compile 'com.google.firebase:firebase-crash:9.4.0' only to project dependencies I get following Exception:
09-14 00:47:54.899 3129-3129/com.szyk.myheart E/FirebaseCrash: Failed to initialize crash reporting
java.lang.NullPointerException: Attempt to invoke interface method 'java.util.Iterator java.util.List.iterator()' on a null object reference
at bol.<init>(:com.google.android.gms.DynamiteModulesC:3201)
at com.google.firebase.crash.internal.api.FirebaseCrashApiImpl.init(:com.google.android.gms.DynamiteModulesC:67)
at bnu.onTransact(:com.google.android.gms.DynamiteModulesC:60)
at android.os.Binder.transact(Binder.java:387)
at com.google.firebase.crash.internal.zzd$zza$zza.zza(Unknown Source)
at com.google.firebase.crash.FirebaseCrash.<init>(Unknown Source)
at com.google.firebase.crash.FirebaseCrash.getInstance(Unknown Source)
at java.lang.reflect.Method.invoke(Native Method)
at com.google.firebase.FirebaseApp.zza(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.initializeApp(Unknown Source)
at com.google.firebase.FirebaseApp.zzek(Unknown Source)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1748)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1723)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(Unknown Source)
at android.app.ActivityThread.installProvider(ActivityThread.java:5153)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4748)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4688)
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
The issue is more stranger, because once it will produce ANR and crash, then it works in next launches.
My dependencies:
compile 'com.google.firebase:firebase-core:9.4.0'
//not working compile 'com.google.firebase:firebase-crash:9.4.0'
compile 'com.google.firebase:firebase-invites:9.4.0'
compile 'com.google.firebase:firebase-ads:9.4.0'
compile 'com.google.android.gms:play-services-auth:9.4.0'
compile 'com.google.android.gms:play-services-plus:9.4.0'
compile 'com.google.android.gms:play-services-drive:9.4.0'