ConcurrentModificationException

[tapz]

• Review the documentation: https://facebook.github.io/react-native
• Search for existing issues: https://github.com/facebook/react-native/issues
• Use the latest React Native release: https://github.com/facebook/react-native/releases

Environment

Environment:
OS: macOS High Sierra 10.13.5
Node: 8.11.3
Yarn: 1.7.0
npm: 5.6.0
Watchman: 4.9.0
Xcode: Xcode 9.4.1 Build version 9F2000
Android Studio: 3.1 AI-173.4697961

Packages: (wanted => installed)
react: 16.4.1 => 16.4.1
react-native: 0.55.4 => 0.55.4

Description

Caused by java.util.ConcurrentModificationException
       at android.support.v4.util.SimpleArrayMap.put(SimpleArrayMap.java:461)
       at android.support.v7.widget.AppCompatDrawableManager.addDelegate(AppCompatDrawableManager.java:493)
       at android.support.v7.widget.AppCompatDrawableManager.installDefaultInflateDelegates(AppCompatDrawableManager.java:97)
       at android.support.v7.widget.AppCompatDrawableManager.get(AppCompatDrawableManager.java:86)
       at android.support.v7.content.res.AppCompatResources.getDrawable(AppCompatResources.java:100)
       at android.support.v7.widget.TintTypedArray.getDrawable(TintTypedArray.java:75)
       at android.support.v7.widget.SwitchCompat.<init>(SwitchCompat.java:223)
       at android.support.v7.widget.SwitchCompat.<init>(SwitchCompat.java:200)
       at android.support.v7.widget.SwitchCompat.<init>(SwitchCompat.java:189)
       at com.facebook.react.views.switchview.ReactSwitch.<init>(ReactSwitch.java:23)
       at com.facebook.react.views.switchview.ReactSwitchManager.createViewInstance(ReactSwitchManager.java:118)
       at com.facebook.react.views.switchview.ReactSwitchManager.createViewInstance(ReactSwitchManager.java:31)
       at com.facebook.react.uimanager.ViewManager.createView(ViewManager.java:42)
       at com.facebook.react.uimanager.NativeViewHierarchyManager.createView(NativeViewHierarchyManager.java:223)
       at com.facebook.react.uimanager.UIViewOperationQueue$CreateViewOperation.execute(UIViewOperationQueue.java:152)
       at com.facebook.react.uimanager.UIViewOperationQueue$DispatchUIFrameCallback.dispatchPendingNonBatchedOperations(UIViewOperationQueue.java:1012)
       at com.facebook.react.uimanager.UIViewOperationQueue$DispatchUIFrameCallback.doFrameGuarded(UIViewOperationQueue.java:983)
       at com.facebook.react.uimanager.GuardedFrameCallback.doFrame(GuardedFrameCallback.java:29)
       at com.facebook.react.modules.core.ReactChoreographer$ReactChoreographerDispatcher.doFrame(ReactChoreographer.java:134)
       at com.facebook.react.modules.core.ChoreographerCompat$FrameCallback$1.doFrame(ChoreographerCompat.java:105)
       at android.view.Choreographer$CallbackRecord.run(Choreographer.java:909)
       at android.view.Choreographer.doCallbacks(Choreographer.java:686)
       at android.view.Choreographer.doFrame(Choreographer.java:619)
       at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
       at android.os.Handler.handleCallback(Handler.java:739)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:148)
       at android.app.ActivityThread.main(ActivityThread.java:7325)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

Reproducible Demo

No idea how to reproduce as occurs randomly in release builds. The stack trace is from Crashlytics. Seems to be related on how React Native updates the UI. Our code does not have much control over the native screen updating and as JavaScript is single threaded, there isn't much we can do about concurrency.

[seanadkinson]

Seeing this in our bugsnag as well. Same stacktrace. Obviously seems to be related to rendering a Switch, based on the stacktrace.

[react-native-bot]

I am closing this issue because it does not appear to have been verified on the latest release, and there has been no followup in a while.

If you found this thread after encountering the same issue in the latest release, please feel free to create a new issue with up-to-date information by clicking here.

[tapz]

A nice way to get rid of bugs without fixing them. As nobody has mentioned a fix in the next RN version, it probably does not exist.

Testing with the new RN is not currently possible as it has compatibility issues with my dependencies (or for some other reason does not work at all).

[syntax-e]

We're seeing this occasionally in our app's production crash reports as well. So far it has only shown up on 3 devices, all running Android 6.0.x. Unable to find deterministic repro steps.

com.facebook.react.views.switchview.ReactSwitch.<init>
ReactSwitch.java, line 25
java.util.ConcurrentModificationException: java.util.ConcurrentModificationException

Environment:
  OS: macOS 10.14.1
  Node: 10.9.0
  Yarn: 1.9.4
  npm: 6.4.1
  Watchman: 4.9.0
  Xcode: Xcode 10.1 Build version 10B61
  Android Studio: 3.2 AI-181.5540.7.32.5056338

Packages: (wanted => installed)
  react: 16.0.0 => 16.0.0
  react-native: ^0.51.0 => 0.51.1

[arled]

Getting this on android only:

    "react": "16.4.1",
    "react-native": "0.56.0",

All bugs related to this end up getting closed with no without a solution!!!