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[WorkManagerSample] Toast.show called in a worker, throwing a silent error #1077

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JoseAlcerreca opened this issue Jan 11, 2023 · 0 comments
Open

[WorkManagerSample] Toast.show called in a worker, throwing a silent error #1077

JoseAlcerreca opened this issue Jan 11, 2023 · 0 comments
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@tikurahul

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@JoseAlcerreca
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This happens when running the ImageOperationsTest, although the test still passes.

01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: Work [ id=c124293f-e796-4f70-b0db-36e5d7ddaf7e, tags={ OUTPUT, com.example.background.workers.UploadWorker } ] failed because it threw an exception/error
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Can't toast on a thread that has not called Looper.prepare()
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.AbstractFuture.getDoneValue(AbstractFuture.java:516)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.AbstractFuture.get(AbstractFuture.java:475)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.WorkerWrapper$2.run(WorkerWrapper.java:311)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:91)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:93)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.scheduleNext(SerialExecutor.java:55)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor.execute(SerialExecutor.java:46)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.AbstractFuture.executeListener(AbstractFuture.java:1051)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.AbstractFuture.complete(AbstractFuture.java:900)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.AbstractFuture.set(AbstractFuture.java:685)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.SettableFuture.set(SettableFuture.java:51)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at androidx.work.CoroutineWorker$startWork$1.invokeSuspend(CoroutineWorker.kt:69)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
01-11 09:01:01.752 28606 28641 E WM-WorkerWrapper: 	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: Caused by: java.lang.NullPointerException: Can't toast on a thread that has not called Looper.prepare()
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at com.android.internal.util.Preconditions.checkNotNull(Preconditions.java:167)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at android.widget.Toast.getLooper(Toast.java:185)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at android.widget.Toast.<init>(Toast.java:170)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at android.widget.Toast.makeText(Toast.java:498)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at android.widget.Toast.makeText(Toast.java:486)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at com.example.background.workers.UploadWorker.toastAndLog(UploadWorker.kt:70)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at com.example.background.workers.UploadWorker.doWork(UploadWorker.kt:64)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.Worker$1.run(Worker.java:86)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.Worker.startWork(Worker.java:82)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.WorkerWrapper$1.run(WorkerWrapper.java:295)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.testing.SynchronousExecutor.execute(SynchronousExecutor.java:30)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.AbstractFuture.executeListener(AbstractFuture.java:1051)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.futures.AbstractFuture.addListener(AbstractFuture.java:666)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.WorkerWrapper.runWorker(WorkerWrapper.java:287)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.WorkerWrapper.run(WorkerWrapper.java:137)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:91)
01-11 09:01:01.753 28606 28641 E WM-WorkerWrapper: 	... 32 more
01-11 09:01:01.754 28606 28641 I WM-WorkerWrapper: Worker result FAILURE for Work [ id=c124293f-e796-4f70-b0db-36e5d7ddaf7e, tags={ OUTPUT, com.example.background.workers.UploadWorker } ]
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@JoseAlcerreca @tikurahul and others