Serializing to a byte array threw an IOException (should never happen)

Question

I have this new error from one user. This happened when I pushed the app with the new 11.0.0 Play Services.

Fatal Exception: java.lang.RuntimeException: Serializing to a byte array threw an IOException (should never happen).
       at com.google.android.gms.internal.aif.zzn(Unknown Source)
       at com.google.android.gms.internal.aez.zzKB(Unknown Source)
       at com.google.android.gms.internal.aez.zzKC(Unknown Source)
       at com.google.android.gms.internal.aez.zzKB(Unknown Source)
       at com.google.android.gms.internal.afc.run(Unknown Source)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:762)
Caused by com.google.android.gms.internal.ahy: CodedOutputStream was writing to a flat byte array and ran out of space (pos 199 limit 199).
       at com.google.android.gms.internal.ahx.zze(Unknown Source)
       at com.google.android.gms.internal.ahx.zzc(Unknown Source)
       at com.google.android.gms.internal.ahx.zzc(Unknown Source)
       at com.google.android.gms.internal.ahx.zzb(Unknown Source)
       at com.google.android.gms.internal.afq.zza(Unknown Source)
       at com.google.android.gms.internal.ahx.zzJ(Unknown Source)
       at com.google.android.gms.internal.ahx.zzJ(Unknown Source)
       at com.google.android.gms.internal.afr.zza(Unknown Source)
       at com.google.android.gms.internal.aif.zzn(Unknown Source)
       at com.google.android.gms.internal.aez.zzKB(Unknown Source)
       at com.google.android.gms.internal.aez.zzKC(Unknown Source)
       at com.google.android.gms.internal.aez.zzKB(Unknown Source)
       at com.google.android.gms.internal.afc.run(Unknown Source)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:762)

I have no idea were to start.

Answer 1

I'm an engineer from Firebase Performance Monitoring. Sorry to everyone that's encountered this issue. We've identified the problem and a patch is now available. Please upgrade to 11.0.2.