My app is crashing after the process is killed and recreated – with the following exception.
06-15 15:21:15.064 3610-3610/com.example.app E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.app, PID: 3610
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.app/com.example.app.ui.module.main.MainActivity}: java.lang.RuntimeException: Parcel android.os.Parcel@17b7cca: Unmarshalling unknown type code 1279544898 at offset 1084
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.RuntimeException: Parcel android.os.Parcel@17b7cca: Unmarshalling unknown type code 1279544898 at offset 1084
at android.os.Parcel.readValue(Parcel.java:2824)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:3195)
at android.os.Parcel.readSparseArray(Parcel.java:2407)
at android.os.Parcel.readValue(Parcel.java:2802)
at android.os.Parcel.readArrayMapInternal(Parcel.java:3114)
at android.os.BaseBundle.initializeFromParcelLocked(BaseBundle.java:273)
at android.os.BaseBundle.unparcel(BaseBundle.java:226)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1009)
at com.android.internal.policy.PhoneWindow.restoreHierarchyState(PhoneWindow.java:2129)
at android.app.Activity.onRestoreInstanceState(Activity.java:1102)
at android.app.Activity.performRestoreInstanceState(Activity.java:1057)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1260)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2751)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
06-15 15:21:15.065 3610-3610/com.example.app E/UncaughtException: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.app/com.example.app.ui.module.main.MainActivity}: java.lang.RuntimeException: Parcel android.os.Parcel@17b7cca: Unmarshalling unknown type code 1279544898 at offset 1084
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.RuntimeException: Parcel android.os.Parcel@17b7cca: Unmarshalling unknown type code 1279544898 at offset 1084
at android.os.Parcel.readValue(Parcel.java:2824)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:3195)
at android.os.Parcel.readSparseArray(Parcel.java:2407)
at android.os.Parcel.readValue(Parcel.java:2802)
at android.os.Parcel.readArrayMapInternal(Parcel.java:3114)
at android.os.BaseBundle.initializeFromParcelLocked(BaseBundle.java:273)
at android.os.BaseBundle.unparcel(BaseBundle.java:226)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1009)
at com.android.internal.policy.PhoneWindow.restoreHierarchyState(PhoneWindow.java:2129)
at android.app.Activity.onRestoreInstanceState(Activity.java:1102)
at android.app.Activity.performRestoreInstanceState(Activity.java:1057)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1260)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2751)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.-wrap11(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
I came across this seemingly similar question, with an accepted answer. It points to a Parcelable implementation being obfuscated by ProGuard as the cause, and fixes the issue by adding a ProGuard rule.
I tried adding the aforementioned ProGuard rule to my ProGuard rules, but the crash still occurs. I turned off ProGuard altogether, and the app still crashes.
Even more puzzling is the fact that I actively try to avoid using Parcelable. It is still prevalent in some of the older codebase, but I try to remove it when I can (and implement the new ViewModel structure). The only place I see Parcelable being used in onRestoreInstanceState for a custom Preference class I created; but crash occurs after these methods are successfully called. The stack trace doesn't seem to point to anything, only that the MainActivity is crashing, not even so much as a line number.
Update
The only usage of Parcelable that is referenced from in a class that the MainActivity makes use of is in a custom WallpaperPreference class. This class is used in a Fragment embedded in the MainActivity. I removed this Fragment from the activity, and the crash still occurs.
