Null Pointer exception in com.google.android.gms.ads.internal.mediation

[Ryan Johnstone]

With no updates to the app we suddenly received a new crash with a high velocity and no idea how to debug, unable to reproduce. 

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference

       at java.util.regex.Matcher.appendEvaluated(Matcher.java:131)

       at java.util.regex.Matcher.appendReplacement(Matcher.java:111)

       at java.util.regex.Matcher.replaceAll(Matcher.java:319)

       at java.lang.String.replaceAll(String.java:1353)

       at com.google.android.gms.ads.internal.mediation.k.a(:com.google.android.gms.DynamiteModulesA:75)

       at com.google.android.gms.ads.internal.zzt$zza.b(:com.google.android.gms.DynamiteModulesA:179)

       at com.google.android.gms.ads.internal.reward.mediation.i.run(:com.google.android.gms.DynamiteModulesA:85)

       at android.os.Handler.handleCallback(Handler.java:739)

       at android.os.Handler.dispatchMessage(Handler.java:95)

       at android.os.Looper.loop(Looper.java:158)

       at android.app.ActivityThread.main(ActivityThread.java:7229)

       at java.lang.reflect.Method.invoke(Method.java)

       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)

       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

[Ryan Johnstone]

Play services 9.2.1

[Vu Chau (Mobile Ads SDK Team)]

Hi Ryan,

Google Play services v9.4.0 shipped with fixes to similar crashes.  I would recompile your app against the latest version to see if there is an improvement.

Feel free to follow up with us,

Vu Chau

Mobile Ads SDK Team

[Ryan Johnstone]

Thanks Vu, but we're still experiencing the same crash on 9.4.0

[Veer Arjun Busani(Mobile Ads SDK Team)]

Hi Ryan,

Can you send us your crash logs and link to your app? Also send us a Charles session of your app would be helpful. Once we receive this, we would be looking into this issue again.

Thanks,

Arjun Busani
Mobile Ads SDK Team

[Ryan Johnstone]

Seems to have stopped again now... I'll provide those details if it occurs again, thanks :)

[Raimon PlaySpace]

We are experiencing the same crash using Google Play Services 9.4.0.

This is part of our build.gradle:

def playServicesVer = '9.4.0'
compile("com.google.android.gms:play-services-ads:${playServicesVer}")         { transitive = true }
compile("com.google.android.gms:play-services-ads-lite:${playServicesVer}")    { transitive = true }
compile("com.google.android.gms:play-services-analytics:${playServicesVer}")   { transitive = true }
compile("com.google.android.gms:play-services-appindexing:${playServicesVer}") { transitive = true }
compile("com.google.android.gms:play-services-auth:${playServicesVer}")        { transitive = true }
compile("com.google.android.gms:play-services-base:${playServicesVer}")        { transitive = true }
compile("com.google.android.gms:play-services-basement:${playServicesVer}")    { transitive = true }
compile("com.google.android.gms:play-services-games:${playServicesVer}")       { transitive = true }
compile("com.google.android.gms:play-services-gcm:${playServicesVer}")         { transitive = true }
compile("com.google.android.gms:play-services-identity:${playServicesVer}")    { transitive = true }
compile("com.google.android.gms:play-services-plus:${playServicesVer}")        { transitive = true }
compile("com.google.android.gms:play-services-clearcut:${playServicesVer}")    { transitive = true }
compile("com.google.android.gms:play-services-gass:${playServicesVer}")        { transitive = true }
compile("com.google.android.gms:play-services-tasks:${playServicesVer}")       { transitive = true }

And this is our crash report:

E/AndroidRuntime(22368)       : FATAL EXCEPTION: main
E/AndroidRuntime(22368)       : Process: com.xxxx.xxxxxxxxx, PID: 22368
E/AndroidRuntime(22368)       : java.lang.Error: FATAL EXCEPTION [main]
E/AndroidRuntime(22368)       : Unity version     : 5.3.6p2
E/AndroidRuntime(22368)       : Device model      : asus Nexus 7
E/AndroidRuntime(22368)       : Device fingerprint: google/razor/flo:5.0.2/LRX22G/1649326:user/release-keys
E/AndroidRuntime(22368)       :  
E/AndroidRuntime(22368)       : Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
E/AndroidRuntime(22368)       : at java.util.regex.Matcher.appendEvaluated(Matcher.java:131)
E/AndroidRuntime(22368)       : at java.util.regex.Matcher.appendReplacement(Matcher.java:111)
E/AndroidRuntime(22368)       : at java.util.regex.Matcher.replaceAll(Matcher.java:319)
E/AndroidRuntime(22368)       : at java.lang.String.replaceAll(String.java:1600)
E/AndroidRuntime(22368)       : at com.google.android.gms.ads.internal.mediation.k.a(:com.google.android.gms.DynamiteModulesA:75)
E/AndroidRuntime(22368)       : at com.google.android.gms.ads.internal.c.b(:com.google.android.gms.DynamiteModulesA:179)
E/AndroidRuntime(22368)       : at com.google.android.gms.ads.internal.reward.mediation.i.run(:com.google.android.gms.DynamiteModulesA:85)
E/AndroidRuntime(22368)       : at android.os.Handler.handleCallback(Handler.java:739)
E/AndroidRuntime(22368)       : at android.os.Handler.dispatchMessage(Handler.java:95)
E/AndroidRuntime(22368)       : at android.os.Looper.loop(Looper.java:135)
E/AndroidRuntime(22368)       : at android.app.ActivityThread.main(ActivityThread.java:5221)
E/AndroidRuntime(22368)       : at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(22368)       : at java.lang.reflect.Method.invoke(Method.java:372)
E/AndroidRuntime(22368)       : at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
E/AndroidRuntime(22368)       : at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

This is a Unity3D game, using Google Play Services, Firebase and AdMob with mediation.

Any suggestion why it might be crashing? Thanks a lot! 

[Veer Arjun Busani(Mobile Ads SDK Team)]

Hi Raimon,

Thank you for the stack trace. These traces do not look similar to the one reported originally in this thread. Can you send us more details?

• Charles logs of your app.
• Code snippets and if you are able to reproduce this locally, then steps to do so.
• Your Ad Unit IDs.
• Finally, link to your app and tell us where these crashes might be occurring.
• Also, can you tell us the local Play Services version?

Thanks,

Arjun Busani
Mobile Ads SDK Team

[Raimon PlaySpace]

Hi Arjun,

Thanks for your response. It looks like the bug was in our side, even though it is not evident from the stack trace.

We're trying to figure out what it is, I'll post an update when I have more info.

Thanks a lot!

Raimon