Enable the rest of Android API lint checks [138602561]

In Progress

Bug

androidx-bug-bounty

Status Update

No update yet.

Description

au...@google.com

created issue #1

Jul 29, 2019 09:43PM

Sponsor: aurimas@
Estimated workload: ~1 day per check
Technologies: Gradle, Metalava, API signature files

We have a number of API lint checks that are yet to be enabled. Some checks should be as simple as turning it on and whitelisting existing issues. Some checks will require improving the checks so it has less false positive results.

https://osscs.corp.google.com/androidx/platform/frameworks/support/+/androidx-master-dev:buildSrc/src/main/kotlin/androidx/build/metalava/MetalavaRunner.kt;l=67?q=metalavarunner&ss=androidx%2Fplatform%2Fframeworks%2Fsupport

Comments

ap...@google.com <ap...@google.com> #2Sep 6, 2019 03:35PM

what Application are you trying to reproduce the issue. I tried rotating the device for couple of times, Issue not seen. Also provide Device you are using to reproduce the issue

ap...@google.com <ap...@google.com> #3Sep 19, 2019 04:39PM

Any Android 2.3.x, really. The application is a Beta version of an unreleased app.

This issie initially appeared on a Samsung Galaxy Ace with 2.3.3, but after testing it in an Android emulator, it also appeared. The dificulty to reproduce this is because it only seems to happen after a crash of the app (either by OOM or some other bug), and we Android tries to recreate the app, it crashes again with the "ClassNotFoundException when unmarshalling".

Also, we're having another crash similar to this, but in AppBarLayout.Behaviour:

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{

cm.aptoide.pt.dev/cm.aptoide.pt.AppViewActivity}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1658)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1674)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:942)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3735)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:662)
at dalvik.system.NativeStart.main(NativeStart.java)
Caused by android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1958)
at android.os.Parcel.readParcelableArray(Parcel.java:1997)
at android.support.design.widget.CoordinatorLayout$SavedState.<init>(CoordinatorLayout.java:2604)
at android.support.design.widget.CoordinatorLayout$SavedState$1.createFromParcel(CoordinatorLayout.java:2639)
at android.support.design.widget.CoordinatorLayout$SavedState$1.createFromParcel(CoordinatorLayout.java:2636)
at android.support.v4.os.ParcelableCompat$CompatCreator.createFromParcel(ParcelableCompat.java:51)
at android.os.Parcel.readParcelable(Parcel.java:1981)
at android.os.Parcel.readValue(Parcel.java:1846)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2112)
at android.os.Parcel.readSparseArray(Parcel.java:1568)
at android.os.Parcel.readValue(Parcel.java:1903)
at android.os.Parcel.readMapInternal(Parcel.java:2083)
at android.os.Bundle.unparcel(Bundle.java:208)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1175)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1517)
at android.app.Activity.onRestoreInstanceState(Activity.java:844)
at android.app.Activity.performRestoreInstanceState(Activity.java:816)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1636)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1674)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:942)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3735)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:662)
at dalvik.system.NativeStart.main(NativeStart.java)

Thanks in advance.

ap...@google.com <ap...@google.com> #4Sep 27, 2019 09:51PM

Hi Please provide the sample project to reproduce the issue, Also our eng teams are not prioritizing changes on earlier releases.

ap...@google.com <ap...@google.com> #5Sep 27, 2019 11:23PM

It does the very same with VLC on Android:
git://

code.videolan.org/videolan/vlc-android.git

ap...@google.com <ap...@google.com> #6Sep 30, 2019 12:25AM

Android 2.3.3 - 2.3.7
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.rusdelphi.wifipassword/com.rusdelphi.wifipassword.MainActivity}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1735)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1754)
at android.app.ActivityThread.access$1500(ActivityThread.java:156)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1000)
at android.os.Handler.dispatchMessage(Handler.java:130)
at android.os.Looper.loop(SourceFile:351)
at android.app.ActivityThread.main(ActivityThread.java:3821)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:538)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:969)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:727)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1989)
at android.os.Parcel.readParcelableArray(Parcel.java:2028)
at android.support.design.widget.CoordinatorLayout$SavedState.<init>(Unknown Source)
at android.support.design.widget.CoordinatorLayout$SavedState$1.createFromParcel(Unknown Source)
at android.support.design.widget.CoordinatorLayout$SavedState$1.createFromParcel(Unknown Source)
at android.support.v4.e.d.createFromParcel(Unknown Source)
at android.os.Parcel.readParcelable(Parcel.java:2012)
at android.os.Parcel.readValue(Parcel.java:1877)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2143)
at android.os.Parcel.readSparseArray(Parcel.java:1599)
at android.os.Parcel.readValue(Parcel.java:1934)
at android.os.Parcel.readMapInternal(Parcel.java:2114)
at android.os.Bundle.unparcel(Bundle.java:239)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1198)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1538)
at android.app.Activity.onRestoreInstanceState(Activity.java:880)
at android.app.Activity.performRestoreInstanceState(Activity.java:852)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1132)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1713)
... 11 more

ap...@google.com <ap...@google.com> #7Sep 30, 2019 09:10PM

Layout
<android.support.v4.widget.DrawerLayout xmlns:android="

http://schemas.android.com/apk/res/android"
xmlns:app="

http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<RelativeLayout
android:id="@+id/MainView"
android:layout_width="match_parent"
android:layout_height="match_parent">

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="@style/ThemeOverlay.AppCompat.Dark" />

<LinearLayout
android:id="@+id/ad_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center|bottom"
android:orientation="vertical" />

<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:theme="@style/ThemeOverlay.AppCompat.Dark"
app:tabGravity="fill" />

<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />

</LinearLayout>

<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_margin="@dimen/fab_margin"
android:layout_marginBottom="@dimen/activity_vertical_margin"
android:layout_marginRight="@dimen/activity_horizontal_margin"
android:onClick="onAddButtonClick"
android:src="@drawable/ic_add_black_24dp"
android:visibility="invisible"
app:layout_behavior="com.rusdelphi.wifipassword.FABScrollBehavior" />

</RelativeLayout>

<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="@menu/drawer_view" />
</android.support.v4.widget.DrawerLayout>

ap...@google.com <ap...@google.com> #8Oct 1, 2019 08:06PM

This is our #1 crash in crashlytics. Same behavior and types of crashes.

ap...@google.com <ap...@google.com> #9Oct 2, 2019 04:34PM

Happens on HoneyComb too.

Another stacktrace, in case it could bring some more info:

java.lang.RuntimeException: Unable to start activity ComponentInfo{org.videolan.vlc/org.videolan.vlc.gui.MainActivity}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1696)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1716)
at android.app.ActivityThread.access$1500(ActivityThread.java:124)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:968)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3806)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
at Android.MODEL(MB855)
at Android.VERSION(2.3.5)
at Android.FINGERPRINT(sprint/moto_sunfire/sunfire:2.3.5/4.5.1A-1_SUN-254_13/CM:user/release-keys)
Caused by: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1958)
at android.os.Parcel.readValue(Parcel.java:1846)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2112)
at android.os.Parcel.readSparseArray(Parcel.java:1568)
at android.os.Parcel.readValue(Parcel.java:1903)
at android.os.Parcel.readMapInternal(Parcel.java:2083)
at android.os.Bundle.unparcel(Bundle.java:208)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1167)
at android.support.design.internal.NavigationMenuPresenter.onRestoreInstanceState(NavigationMenuPresenter.java:175)
at android.support.v7.view.menu.MenuBuilder.dispatchRestoreInstanceState(MenuBuilder.java:349)
at android.support.v7.view.menu.MenuBuilder.restorePresenterStates(MenuBuilder.java:361)
at android.support.design.widget.NavigationView.onRestoreInstanceState(NavigationView.java:191)
at android.view.View.dispatchRestoreInstanceState(View.java:6278)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1211)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.View.restoreHierarchyState(View.java:6257)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1724)
at android.app.Activity.onRestoreInstanceState(Activity.java:868)
at android.app.Activity.performRestoreInstanceState(Activity.java:840)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1674)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1716)
at android.app.ActivityThread.access$1500(ActivityThread.java:124)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:968)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3806)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)

au...@google.com <au...@google.com> Oct 2, 2019 07:33PM

Assigned to za...@gmail.com.

ap...@google.com <ap...@google.com> #10Oct 8, 2019 01:00AM

This issue could not be reproduced in Marshmallow builds. At this point, our eng teams are not prioritizing changes on earlier releases. Please do let us know if you encounter this issue on 6.0+.

ap...@google.com <ap...@google.com> #11Oct 8, 2019 06:44PM

This makes me sad. Because we still have about 10% of our user base that can be affected by this.

Are you aware of any work arounds for this issue?

We considered explicitly setting the class loader during the saving of the state in hopes that might fix it. But, we're not sure of any additional ramifications that might have on saving state.

And, it's not specific to just Android 2, though, this is mostly the case.

97% Android 2
1% Android 4
1% Android 3
1% Other

Any advice would be greatly appreciated.

ap...@google.com <ap...@google.com> #12Oct 17, 2019 09:41PM

Do you have a multi-dex setup? If so and RecyclerView is in the secondary dex, I guess this might happen.
The SavedState was not public on an earlier version of the library which could cause this issue but it is already fixed now (+ 23.1.1 should have it public).

Another thing to check might be the proguard setup to ensure that the SavedState class is not being stripped.

ap...@google.com <ap...@google.com> #13Oct 23, 2019 05:55PM

We're not currently using multidex and have these two lines in our proguard config:

-keep class android.support.design.widget.AppBarLayout$Behavior$SavedState { *; }
-keep class android.support.design.widget.CoordinatorLayout$SavedState { *; }

When looking through the mapping files, SavedState seems to be preserved. But, I could be misreading it.

ap...@google.com <ap...@google.com> #14Oct 25, 2019 08:44PM

This is one of the stack traces we have:

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.sirma.mobile.bible.android/com.youversion.ui.MainActivity}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1829)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1848)
at android.app.ActivityThread.access$1500(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1041)
at android.os.Handler.dispatchMessage(Handler.java:130)
at android.os.Looper.loop(Looper.java:384)
at android.app.ActivityThread.main(ActivityThread.java:3975)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:538)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:978)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:732)
at dalvik.system.NativeStart.main(NativeStart.java)
Caused by android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1989)
at android.os.Parcel.readParcelableArray(Parcel.java:2028)
at android.support.design.widget.CoordinatorLayout$SavedState.<init>(CoordinatorLayout.java:2604)
at android.support.design.widget.CoordinatorLayout$SavedState$1.a(CoordinatorLayout.java:2639)
at android.support.design.widget.CoordinatorLayout$SavedState$1.b(CoordinatorLayout.java:2636)
at android.support.v4.os.j.createFromParcel(ParcelableCompat.java:51)
at android.os.Parcel.readParcelable(Parcel.java:2012)
at android.os.Parcel.readValue(Parcel.java:1877)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2143)
at android.os.Parcel.readSparseArray(Parcel.java:1599)
at android.os.Parcel.readValue(Parcel.java:1934)
at android.os.Parcel.readMapInternal(Parcel.java:2114)
at android.os.Bundle.unparcel(Bundle.java:239)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1198)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1544)
at android.app.Activity.onRestoreInstanceState(Activity.java:880)
at com.youversion.ui.MainActivity.onRestoreInstanceState(MainActivity.java:302)
at android.app.Activity.performRestoreInstanceState(Activity.java:852)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1199)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1807)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1848)
at android.app.ActivityThread.access$1500(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1041)
at android.os.Handler.dispatchMessage(Handler.java:130)
at android.os.Looper.loop(Looper.java:384)
at android.app.ActivityThread.main(ActivityThread.java:3975)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:538)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:978)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:732)
at dalvik.system.NativeStart.main(NativeStart.java)

ap...@google.com <ap...@google.com> #15Oct 28, 2019 10:35PM

same problem as in the first message. this is my workaroud that works:

public class FixedNavigationView extends NavigationView {
public FixedNavigationView(Context context) {
super(context);
}

public FixedNavigationView(Context context, AttributeSet attrs) {
super(context, attrs);
}

public FixedNavigationView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}

@Override
final protected void onRestoreInstanceState(Parcelable savedState) {
if (savedState != null) {
SavedState state = (SavedState) savedState;

if (state.menuState != null)
state.menuState.setClassLoader(getContext().getClass().getClassLoader());
}

super.onRestoreInstanceState(savedState);
}
}

ap...@google.com <ap...@google.com> #16Nov 14, 2019 05:09AM

I tried FixedNavigationView , but stil have android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)

ap...@google.com <ap...@google.com> #17Nov 22, 2019 07:33PM

try to fix in the same way AppBarLayout

ap...@google.com <ap...@google.com> #18Nov 25, 2019 08:42PM

This class has a very different structure

ap...@google.com <ap...@google.com> #19Dec 11, 2019 08:37PM

SavedState on AppBarLayout is protected contrary to NavigationView where it's public, so it's not possible to access it in the same way of the NavigationView fix.

And, where are having this issue not only on Adnroid 2, but also on 3, 4 and even Lolipop!

ap...@google.com <ap...@google.com> #20Dec 17, 2019 09:12PM

in android 2.3.6:
FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.fabiano.ifprof/com.example.fabiano.ifprof.ShowFaltas}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1958)
at android.os.Parcel.readValue(Parcel.java:1846)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2112)
at android.os.Parcel.readSparseArray(Parcel.java:1568)
at android.os.Parcel.readValue(Parcel.java:1903)
at android.os.Parcel.readMapInternal(Parcel.java:2083)
at android.os.Bundle.unparcel(Bundle.java:208)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1167)
at android.support.design.internal.NavigationMenuPresenter.onRestoreInstanceState(NavigationMenuPresenter.java:175)
at android.support.v7.view.menu.MenuBuilder.dispatchRestoreInstanceState(MenuBuilder.java:349)
at android.support.v7.view.menu.MenuBuilder.restorePresenterStates(MenuBuilder.java:361)
at android.support.design.widget.NavigationView.onRestoreInstanceState(NavigationView.java:191)
at android.view.View.dispatchRestoreInstanceState(View.java:6278)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1211)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.View.restoreHierarchyState(View.java:6257)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1606)
at android.app.Activity.onRestoreInstanceState(Activity.java:847)
at android.app.Activity.performRestoreInstanceState(Activity.java:819)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1629)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)

ap...@google.com <ap...@google.com> #21Jan 13, 2020 09:36PM

Same issue here.

Stacktrace:

E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.oscarsalguero.myapp/com.oscarsalguero.myapp.view.MainActivity}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1958)
at android.os.Parcel.readValue(Parcel.java:1846)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2112)
at android.os.Parcel.readSparseArray(Parcel.java:1568)
at android.os.Parcel.readValue(Parcel.java:1903)
at android.os.Parcel.readMapInternal(Parcel.java:2083)
at android.os.Bundle.unparcel(Bundle.java:208)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1167)
at android.support.design.internal.NavigationMenuPresenter.onRestoreInstanceState(NavigationMenuPresenter.java:175)
at android.support.v7.view.menu.MenuBuilder.dispatchRestoreInstanceState(MenuBuilder.java:349)
at android.support.v7.view.menu.MenuBuilder.restorePresenterStates(MenuBuilder.java:361)
at android.support.design.widget.NavigationView.onRestoreInstanceState(NavigationView.java:191)
at android.view.View.dispatchRestoreInstanceState(View.java:6336)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1211)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.View.restoreHierarchyState(View.java:6315)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1528)
at android.app.Activity.onRestoreInstanceState(Activity.java:844)
at com.oscarsalguero.myapp.view.MainActivity.onRestoreInstanceState(MainActivity.java:350)
at android.app.Activity.performRestoreInstanceState(Activity.java:816)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1629)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)

[ 01-10 23:09:59.304 32107:0x7d81 E/ ]
Dumpstate > /data/log/dumpstate_app_error

It does not happen on a Nexus 5X running Marshmallow 6.0.1.
It does not happen on a Nexus 5 running KitKat 4.4.4.
The exception happens on a Samsung Galaxy S running Android OS 2.3.6 (Gingerbread).

It happens when coming back to the app from other app and it is kinda random, sometimes it crashes, sometimes it does not.

ap...@google.com <ap...@google.com> #22Jan 16, 2020 04:39PM

[Comment deleted]

ap...@google.com <ap...@google.com> #23Feb 10, 2020 07:24PM

I am also having this issue.

Stack trace:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ovm.ovmapp/com.ovm.ovmapp.ovm.MainActivity}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1958)
at android.os.Parcel.readValue(Parcel.java:1846)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2112)
at android.os.Parcel.readSparseArray(Parcel.java:1568)
at android.os.Parcel.readValue(Parcel.java:1903)
at android.os.Parcel.readMapInternal(Parcel.java:2083)
at android.os.Bundle.unparcel(Bundle.java:208)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1167)
at android.support.design.internal.NavigationMenuPresenter.onRestoreInstanceState(NavigationMenuPresenter.java:175)
at android.support.v7.view.menu.MenuBuilder.dispatchRestoreInstanceState(MenuBuilder.java:349)
at android.support.v7.view.menu.MenuBuilder.restorePresenterStates(MenuBuilder.java:361)
at android.support.design.widget.NavigationView.onRestoreInstanceState(NavigationView.java:191)
at android.view.View.dispatchRestoreInstanceState(View.java:6331)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1211)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.View.restoreHierarchyState(View.java:6310)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1532)
at android.app.Activity.onRestoreInstanceState(Activity.java:844)
at android.app.Activity.performRestoreInstanceState(Activity.java:816)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1629)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)

I have a setup like this:

MainActivity -> SecondActivity -> ThirdActivity

I am able to reproduce the issue by forcing ThirdActivity to crash, which lands me back on SecondActivity, and then navigate back to MainActivity.

MainActivity has a NavigationView which seems to be the source.

I was able to reproduce this on android 2.3.3, but not on 4.3.

ap...@google.com <ap...@google.com> #24Feb 10, 2020 07:41PM

Hi,
I have been getting this annoying crash for quite some time now. This is the #1 crash in my production apk. I even posted a question on stackoverflow:

http://stackoverflow.com/questions/34470018/how-and-where-to-fix-android-os-badparcelableexception-classnotfoundexception

but, unfortunately do not have an answer yet. This is the foremost and only crash in my analytics and google developer console.

ap...@google.com <ap...@google.com> #25Feb 13, 2020 02:37PM

Attaching few device statistics from the developer console.

ap...@google.com <ap...@google.com> #26Feb 20, 2020 11:44PM

Project: platform/frameworks/support
Branch: androidx-master-dev

commit ba95f70d6f212b92b488b172a67659d9b8562307
Author: Sergey <zakharovsergey1000@gmail.com>
Date: Tue Sep 17 17:07:18 2019

API lint check for the BuilderSetStyle is enabled for androidx

Existing issues are suppressed with updated baseline and the
BuilderSetStyle is turned into an error in androidx configuration

Bug: 138602561

Test: ./gradlew checkApi
Change-Id: I88a5da3881049d3048efbd9e45f6b04cfe7589a1

A animation/animation/api/api_lint.ignore
M buildSrc/src/main/kotlin/androidx/build/metalava/MetalavaRunner.kt
M recyclerview/recyclerview-selection/api/api_lint.ignore

https://android-review.googlesource.com/1123357

ap...@google.com <ap...@google.com> #27Mar 5, 2020 07:28PM

Any update on this issue?

ap...@google.com <ap...@google.com> #28May 1, 2020 06:22PM

Same issue

ap...@google.com <ap...@google.com> #29May 26, 2020 07:10PM

Same issue here, it will only occur on android 2.3 devices.

ap...@google.com <ap...@google.com> #30Jun 15, 2020 07:40PM

Same issue here! Exactly the same stack trace. But occurs even in activities with no NavigationView and no ViewPager . #1 crash in my production apk. Started after upgrade to 23.1.1 apis (support-v4, appcompat-v7, ...).
I can reproduce it in a 2.3.6 device after a crash, similar to

https://code.google.com/u/112446505397450681185/. No workaround solved it. Please help!

ap...@google.com <ap...@google.com> #31Jul 6, 2020 04:39PM

any news on the issue? have lots of angry users and no workaround(

ap...@google.com <ap...@google.com> #32Aug 20, 2020 10:31PM

Same here on AppBarLayout.Behavior and I end up disabling saving of state for that widget on Android 2.X, and it seems fine so far.

ap...@google.com <ap...@google.com> #33Aug 24, 2020 04:17PM

[Comment deleted]

ap...@google.com <ap...@google.com> #34Aug 24, 2020 06:59PM

Also we have the same issue on all of 2.3 devices but with AppBarLayout$Behavior$SavedState not RecyclerView$SavedState.
Here is my Logcat:
Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{

com.package.name/com.package.name.ui.activities.MainActivity}: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(NativeStart.java)
Caused by android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.design.widget.AppBarLayout$Behavior$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1958)
at android.os.Parcel.readParcelableArray(Parcel.java:1997)
at android.support.design.widget.CoordinatorLayout$SavedState.(CoordinatorLayout.java:2604)
at android.support.design.widget.CoordinatorLayout$SavedState$1.createFromParcel(CoordinatorLayout.java:4639)
at android.support.v4.os.ParcelableCompat$CompatCreator.createFromParcel(ParcelableCompat.java:51)
at android.os.Parcel.readParcelable(Parcel.java:1981)
at android.os.Parcel.readValue(Parcel.java:1846)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2112)
at android.os.Parcel.readSparseArray(Parcel.java:1568)
at android.os.Parcel.readValue(Parcel.java:1903)
at android.os.Parcel.readMapInternal(Parcel.java:2083)
at android.os.Bundle.unparcel(Bundle.java:208)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1167)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1605)
at android.app.Activity.onRestoreInstanceState(Activity.java:847)
at android.app.Activity.performRestoreInstanceState(Activity.java:819)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1629)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(NativeStart.java)

ap...@google.com <ap...@google.com> #35Aug 31, 2020 04:38PM

Happens with 23.2.1 and a 5.0.2 device.

RecyclerView has great animations, but other than that has been a continuing source of trouble.

ap...@google.com <ap...@google.com> #36Sep 2, 2020 03:26PM

Happens on a 6.0.1 device too.

Ultimately the crash is caused by this code in AbsSavedState, below the "FIXME" where it uses null for classLoader:

https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/core/java/android/view/AbsSavedState.java#55

protected AbsSavedState(Parcel source) {
// FIXME need class loader
Parcelable superState = source.readParcelable(null);

mSuperState = superState != null ? superState : EMPTY_STATE;
}

The "FIXME" has been there for at least 6 years, maybe 8 years:

https://android.googlesource.com/platform/frameworks/base/+log/refs/heads/master/core/java/android/view/AbsSavedState.java

What do you Google guys and gals think?

Is 6 years enough time to get that FIXME actually FIXED?

ap...@google.com <ap...@google.com> #37Oct 21, 2020 05:53PM

Whoa, that's a good point (for root cause), and definitely worth considering for N+, but it won't help this issue at all. We have devices already out there, whose OS won't ever be updated, so we need a fix in the support lib.

za...@gmail.com <za...@gmail.com> Oct 21, 2020 06:33PM

Accepted by za...@gmail.com.

ap...@google.com <ap...@google.com> #38Jul 20, 2023 06:28PM

I have the same issue to all 2.3.x devices.

Caused by android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
at android.os.Parcel.readParcelable(Parcel.java:1958)
at android.os.Parcel.readValue(Parcel.java:1846)
at android.os.Parcel.readSparseArrayInternal(Parcel.java:2112)
at android.os.Parcel.readSparseArray(Parcel.java:1568)
at android.os.Parcel.readValue(Parcel.java:1903)
at android.os.Parcel.readMapInternal(Parcel.java:2083)
at android.os.Bundle.unparcel(Bundle.java:208)
at android.os.Bundle.getSparseParcelableArray(Bundle.java:1167)
at android.support.design.internal.NavigationMenuPresenter.onRestoreInstanceState(NavigationMenuPresenter.java:174)
at android.support.v7.view.menu.MenuBuilder.dispatchRestoreInstanceState(MenuBuilder.java:349)
at android.support.v7.view.menu.MenuBuilder.restorePresenterStates(MenuBuilder.java:361)
at android.support.design.widget.NavigationView.onRestoreInstanceState(NavigationView.java:192)
at android.view.View.dispatchRestoreInstanceState(View.java:6278)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1211)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:1215)
at android.view.View.restoreHierarchyState(View.java:6257)
at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1587)
at android.app.Activity.onRestoreInstanceState(Activity.java:844)
at android.app.Activity.performRestoreInstanceState(Activity.java:816)
at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1096)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1629)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(NativeStart.java)

as...@google.com <as...@google.com> #39Apr 30, 2024 08:26PM

I am thinking google's not going to fix this - it's kinda a way to tell the users to move form 2.3 devices to more modern.