android / android/codelab-android-workmanager

Receiver not registered

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Dominant language
Kotlin
Stars
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Forks
242
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Description

Fatal Exception: java.lang.IllegalArgumentException: Receiver not registered: androidx.work.impl.constraints.trackers.NetworkStateTracker$NetworkStateBroadcastReceiver@e94f739
at android.app.LoadedApk.forgetReceiverDispatcher(LoadedApk.java:862)
at android.app.ContextImpl.unregisterReceiver(ContextImpl.java:1355)
at android.content.ContextWrapper.unregisterReceiver(ContextWrapper.java:576)
at androidx.work.impl.constraints.trackers.NetworkStateTracker.stopTracking(NetworkStateTracker.java:125)
at androidx.work.impl.constraints.trackers.ConstraintTracker.removeListener(ConstraintTracker.java:86)
at androidx.work.impl.constraints.controllers.ConstraintController.replace(ConstraintController.java:97)
at androidx.work.impl.constraints.WorkConstraintsTracker.replace(WorkConstraintsTracker.java:106)
at androidx.work.impl.background.greedy.GreedyScheduler.removeConstraintTrackingFor(GreedyScheduler.java:222)
at androidx.work.impl.background.greedy.GreedyScheduler.onExecuted(GreedyScheduler.java:208)
at androidx.work.impl.Processor.onExecuted(Processor.java:304)
at androidx.work.impl.Processor$FutureListener.run(Processor.java:377)
at android.os.Handler.handleCallback(Handler.java:743)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:150)
at android.app.ActivityThread.main(ActivityThread.java:5665)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:822)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:712)

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the IllegalArgumentException and trace the call path from GreedyScheduler.onExecuted through ConstraintTracker.removeListener to NetworkStateTracker.stopTracking. Inspect the referenced WorkManager classes and Android receiver lifecycle; done means the reported crash no longer occurs during constraint tracking cleanup.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, kotlin
Domain
mobile
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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