java.lang.NullPointerException: Attempt to read from field 'int com.android.server.wm.TaskRecord.taskId' on a null object reference at android.os.Parcel.createException(Parcel.java:2093) at android.os.Parcel.readException(Parcel.java:2055) at android.os.Parcel.readException(Parcel.java:2003) at android.app.IActivityTaskManager$Stub$Proxy.reportAssistContextExtras(IActivityTaskManager.java:5338) at android.app.ActivityThread.handleRequestAssistContextExtras(ActivityThread.java:3808) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2188) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:238) at android.app.ActivityThread.main(ActivityThread.java:7824) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:981) Caused by: android.os.RemoteException: Remote stack trace: at com.android.server.wm.ActivityTaskManagerService.reportAssistContextExtras(ActivityTaskManagerService.java:3259) at android.app.IActivityTaskManager$Stub.onTransact(IActivityTaskManager.java:2463) at com.android.server.wm.OppoActivityTaskManagerService.onTransact(OppoActivityTaskManagerService.java:110) at android.os.Binder.execTransactInternal(Binder.java:1021) at android.os.Binder.execTransact(Binder.java:994)