'com.google.android.gms.internal.zzbsp.zzabx'クラスのクラッシュリカバリレポートの「nullオブジェクト参照」の「java.lang.String.toLowerCase（）」を取得

Question

私はアプリを持っており、クラッシュスティックを統合しましたアプリ内の致命的な問題をキャッチして開発者に報告するライブラリ。ここで

public class MyApplication extends Application { 

    @Override 
    public void onCreate() { 
     super.onCreate(); 
     Fabric.with(this, new Crashlytics()); 
    } 
} 

は依存関係です：ここ

の方法ですFatal Exception: java.lang.NullPointerException Attempt to invoke virtual method 'java.lang.String java.lang.String.toLowerCase(java.util.Locale)' on a null object referencecom.google.android.gms.internal.zzbsp.zzabx (Unknown Source)内のクラス：

apply plugin: 'io.fabric' 
compile('com.crashlytics.sdk.android:crashlytics:2.6.6@aar') { 
     transitive = true; 
} 
compile 'com.google.android.gms:play-services:10.2.0' 

今日、私は私に、このエラーを示すレポートを得ました。このエラーは、Androidのmarshmallowを実行しているLGEデバイスで発生しました。 Fabric.ioのcrashlyticsから

のフルスタックトレース：

#0. Crashed: TubeSockReader-1: 0 0 0x0000000000000000 
     at com.google.android.gms.internal.zzbsp.zzabx(Unknown Source) 
     at com.google.android.gms.internal.zzbsm.zzabv(Unknown Source) 
     at com.google.android.gms.internal.zzbsm.getThreadFactory(Unknown Source) 
     at com.google.android.gms.internal.zzbsm$2.run(Unknown Source) 
     at java.lang.Thread.run(Thread.java:818) 

-- 

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toLowerCase(java.util.Locale)' on a null object reference 
     at com.google.android.gms.internal.zzbsp.zzabx(Unknown Source) 
     at com.google.android.gms.internal.zzbsm.zzabv(Unknown Source) 
     at com.google.android.gms.internal.zzbsm.getThreadFactory(Unknown Source) 
     at com.google.android.gms.internal.zzbsm$2.run(Unknown Source) 
     at java.lang.Thread.run(Thread.java:818) 

#0. Crashed: TubeSockReader-1: 0 0 0x0000000000000000 
     at com.google.android.gms.internal.zzbsp.zzabx(Unknown Source) 
     at com.google.android.gms.internal.zzbsm.zzabv(Unknown Source) 
     at com.google.android.gms.internal.zzbsm.getThreadFactory(Unknown Source) 
     at com.google.android.gms.internal.zzbsm$2.run(Unknown Source) 
     at java.lang.Thread.run(Thread.java:818) 

#1. HeapTaskDaemon 
     at dalvik.system.VMRuntime.runHeapTasks(VMRuntime.java) 
     at java.lang.Daemons$HeapTaskDaemon.run(Daemons.java:355) 
     at java.lang.Thread.run(Thread.java:818) 

#2. pool-6-thread-1 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2053) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1071) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#3. OkHttp ConnectionPool 
     at java.lang.Object.wait(Object.java) 
     at com.android.okhttp.ConnectionPool.performCleanup(ConnectionPool.java:305) 
     at com.android.okhttp.ConnectionPool.runCleanupUntilPoolIsEmpty(ConnectionPool.java:242) 
     at com.android.okhttp.ConnectionPool.-wrap0(ConnectionPool.java) 
     at com.android.okhttp.ConnectionPool$1.run(ConnectionPool.java:97) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#4. TubeSockReader-1 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.FutureTask.awaitDone(FutureTask.java:421) 
     at java.util.concurrent.FutureTask.get(FutureTask.java:163) 
     at com.crashlytics.android.core.CrashlyticsBackgroundWorker.submitAndWait(SourceFile:43) 
     at com.crashlytics.android.core.CrashlyticsController.handleUncaughtException(SourceFile:278) 
     at com.crashlytics.android.core.CrashlyticsController$5.onUncaughtException(SourceFile:262) 
     at com.crashlytics.android.core.CrashlyticsUncaughtExceptionHandler.uncaughtException(SourceFile:30) 
     at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693) 
     at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690) 

#5. GAC_Executor[1] 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2013) 
     at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:410) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at com.google.android.gms.internal.zzadd.run(Unknown Source) 
     at java.lang.Thread.run(Thread.java:818) 

#6. Queue 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2013) 
     at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:510) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(SourceFile:197) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(SourceFile:236) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(SourceFile:65) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(SourceFile:46) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#7. Answers Events Handler1 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2053) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1071) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at io.fabric.sdk.android.services.common.ExecutorUtils$1$1.onRun(SourceFile:75) 
     at io.fabric.sdk.android.services.common.BackgroundPriorityRunnable.run(SourceFile:30) 
     at java.lang.Thread.run(Thread.java:818) 

#8. GoogleApiHandler 
     at android.os.MessageQueue.nativePollOnce(MessageQueue.java) 
     at android.os.MessageQueue.next(MessageQueue.java:323) 
     at android.os.Looper.loop(Looper.java:135) 
     at android.os.HandlerThread.run(HandlerThread.java:61) 

#9. main 
     at java.lang.Character.isDigit(Character.java:2672) 
     at java.lang.Character.isDigit(Character.java:2658) 
     at java.util.Formatter$FormatSpecifierParser.nextInt(Formatter.java:2406) 
     at java.util.Formatter$FormatSpecifierParser.parseArgumentIndexAndFlags(Formatter.java:2329) 
     at java.util.Formatter$FormatSpecifierParser.parseFormatToken(Formatter.java:2298) 
     at java.util.Formatter.doFormat(Formatter.java:1071) 
     at java.util.Formatter.format(Formatter.java:1042) 
     at java.util.Formatter.format(Formatter.java:1011) 
     at java.lang.String.format(String.java:1554) 
     at java.lang.String.format(String.java:1528) 
     at com.getsportalapp.sportal.SignUpActivity$7.run(SourceFile:599) 
     at android.os.Handler.handleCallback(Handler.java:739) 
     at android.os.Handler.dispatchMessage(Handler.java:95) 
     at android.os.Looper.loop(Looper.java:148) 
     at android.app.ActivityThread.main(ActivityThread.java:5421) 
     at java.lang.reflect.Method.invoke(Method.java) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

#10. AsyncTask #2 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2013) 
     at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:410) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#11. FinalizerWatchdogDaemon 
     at java.lang.Thread.sleep(Thread.java) 
     at java.lang.Thread.sleep(Thread.java:1031) 
     at java.lang.Thread.sleep(Thread.java:985) 
     at java.lang.Daemons$FinalizerWatchdogDaemon.sleepFor(Daemons.java:273) 
     at java.lang.Daemons$FinalizerWatchdogDaemon.waitForFinalization(Daemons.java:284) 
     at java.lang.Daemons$FinalizerWatchdogDaemon.run(Daemons.java:232) 
     at java.lang.Thread.run(Thread.java:818) 

#12. GAC_Executor[0] 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2013) 
     at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:410) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at com.google.android.gms.internal.zzadd.run(Unknown Source) 
     at java.lang.Thread.run(Thread.java:818) 

#13. AsyncTask #1 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2013) 
     at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:410) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#14. pool-1-thread-1 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2013) 
     at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:410) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#15. pool-2-thread-1 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2053) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1071) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#16. FirebaseDatabaseWorker 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2053) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1071) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#17. pool-3-thread-1 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2053) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090) 
     at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1071) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#18. Measurement Worker 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Object.wait(Object.java:423) 
     at com.google.android.gms.internal.zzaud$zzd.run(Unknown Source) 

#19. Queue 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Thread.parkFor$(Thread.java:1220) 
     at sun.misc.Unsafe.park(Unsafe.java:299) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158) 
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2013) 
     at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:510) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(SourceFile:197) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(SourceFile:236) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(SourceFile:65) 
     at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(SourceFile:46) 
     at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1038) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1098) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at java.lang.Thread.run(Thread.java:818) 

#20. FinalizerDaemon 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Object.wait(Object.java:423) 
     at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:101) 
     at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:72) 
     at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:185) 
     at java.lang.Thread.run(Thread.java:818) 

#21. ReferenceQueueDaemon 
     at java.lang.Object.wait(Object.java) 
     at java.lang.Daemons$ReferenceQueueDaemon.run(Daemons.java:147) 
     at java.lang.Thread.run(Thread.java:818) 

#22. Crashlytics Exception Handler1 
     at dalvik.system.VMStack.getThreadStackTrace(VMStack.java) 
     at java.lang.Thread.getStackTrace(Thread.java:580) 
     at java.lang.Thread.getAllStackTraces(Thread.java:522) 
     at com.crashlytics.android.core.CrashlyticsController.writeSessionEvent(SourceFile:1092) 
     at com.crashlytics.android.core.CrashlyticsController.writeFatal(SourceFile:831) 
     at com.crashlytics.android.core.CrashlyticsController.access$100(SourceFile:59) 
     at com.crashlytics.android.core.CrashlyticsController$6.call(SourceFile:285) 
     at com.crashlytics.android.core.CrashlyticsController$6.call(SourceFile:278) 
     at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
     at io.fabric.sdk.android.services.common.ExecutorUtils$1$1.onRun(SourceFile:75) 
     at io.fabric.sdk.android.services.common.BackgroundPriorityRunnable.run(SourceFile:30) 
     at java.lang.Thread.run(Thread.java:818) 

このエラー、なぜ私はそれを取得していますとは何ですか？

Answer 1

まず、実際に問題を診断するために必要なものが例外からの完全なスタックトレースであるときに、ほんの少しだけ役立つスレッドダンプを投稿しました。

しかし、スレッドダンプに表示される唯一のアクティビティはSignUpActivityなので、そこを見ることをお勧めします。

エラーは文字通りnull文字列リファレンスでLowerCaseを呼び出すときのものです。これは、たとえば、AsyncTaskを使用し、バックグラウンドスレッドのテキストフィールドにアクセスしたが、アクティビティが破棄された場合（たとえば、デバイスのローテーション）に発生する可能性があります。

「com.google.android.gms.internal.zzbsp.zzabx」についてのビットは、クラッシュ報告ライブラリの副作用である可能性が最も高い赤ちゃんです。 まず自分のコードを見てください。

また、前述のように、実際のスタックトレースが利用可能であれば、おそらく本当に役立つでしょう。

Answer 2

これはGMSライブラリのバグです。 NullPointer on toLowerCase but I don't use that method anywhere

は、これは問題です：：https://issuetracker.google.com/issues/37135148