Null pointer exception in BandSelectionHelper [167821507]

Fixed

Bug

Status Update

No update yet.

Description

an...@gmail.com

created issue #1

Sep 4, 2020 11:36PM

Component used: recyclerview-selection Version used: 1.1.0-rc01 Devices/Android versions reproduced on: G1030A/Android 5

Fatal Exception: java.lang.NullPointerException: Attempt to read from field 'int android.graphics.Point.x' on a null object reference
       at androidx.recyclerview.selection.BandSelectionHelper.resizeBand(BandSelectionHelper.java:268)
       at androidx.recyclerview.selection.BandSelectionHelper.onScrolled(BandSelectionHelper.java:329)
       at androidx.recyclerview.selection.BandSelectionHelper$1.onScrolled(BandSelectionHelper.java:102)
       at androidx.recyclerview.widget.RecyclerView.dispatchOnScrolled(RecyclerView.java:5173)
       at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep3(RecyclerView.java:4231)
       at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3862)
       at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4404)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at androidx.swiperefreshlayout.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:689)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
       at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
       at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at androidx.coordinatorlayout.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1213)
       at androidx.coordinatorlayout.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:899)
       at androidx.coordinatorlayout.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:919)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
       at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
       at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
       at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
       at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
       at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
       at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
       at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
       at android.view.View.layout(View.java:15671)
       at android.view.ViewGroup.layout(ViewGroup.java:5038)
       at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2086)
       at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1843)
       at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1061)
       at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5885)
       at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
       at android.view.Choreographer.doCallbacks(Choreographer.java:580)
       at android.view.Choreographer.doFrame(Choreographer.java:550)
       at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
       at android.os.Handler.handleCallback(Handler.java:739)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:135)
       at android.app.ActivityThread.main(ActivityThread.java:5258)
       at java.lang.reflect.Method.invoke(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:372)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

Comments

an...@gmail.com <an...@gmail.com> #2Sep 4, 2020 11:37PM

The other similar issues were:

https://issuetracker.google.com/issues/74877618
and

https://issuetracker.google.com/issues/37086625

sh...@google.com <sh...@google.com> Sep 10, 2020 12:26AM

Reassigned to sm...@google.com.

sm...@google.com <sm...@google.com> #3Sep 10, 2020 02:23AM

Issue is reproducible. More details are here -

https://drive.google.com/corp/drive/folders/1eG7JZob_ulzeDCO_KQI0l3on5u39w30V (internal only link).

ap...@google.com <ap...@google.com> #4Sep 11, 2020 05:52PM

Run

sm...@google.com <sm...@google.com> #5Sep 11, 2020 05:57PM

Run

ap...@google.com <ap...@google.com> #6Sep 16, 2020 06:34PM

Run

ap...@google.com <ap...@google.com> #7Sep 16, 2020 06:37PM

Adarsh,

Could you please try to determine around what version of RecyclerView this bug seems to have been created? I would first try to reproduce the bug via the version in the sample and then see if it is reproducible betwee RecyclerView 26 all the way up to the AndroidX RecyclerView 1.1.0-alpha04.

Thanks

ap...@google.com <ap...@google.com> #8Sep 16, 2020 06:55PM

Regression info updated at -

https://docs.google.com/document/d/1KAvDAGzc-_L4eAKgjEN6v9q9EaWZjsLCfS9TEPxdPYc/edit (internal only)

an...@google.com <an...@google.com> #9Sep 16, 2020 06:55PM

Could you please provide an update on this issue?

sm...@google.com <sm...@google.com> #10Sep 16, 2020 08:56PM

Marked as fixed.

2019-08-16 2:07 GMT-07:00, buganizer-system@google.com
<buganizer-system@google.com>:

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