Fixed
Status Update
Comments
da...@gmail.com <da...@gmail.com> #2
Have same problem
wu...@google.com <wu...@google.com> #3
java.util.ConcurrentModificationException
at java.util.WeakHashMap$HashIterator.next(WeakHashMap.java:165)
at androidx.work.impl.utils.WakeLocks.checkWakeLocks(WakeLocks.java:70)
at androidx.work.impl.background.systemalarm.SystemAlarmService.onAllCommandsCompleted(SystemAlarmService.java:69)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher.dequeueAndCheckForCompletion(SystemAlarmDispatcher.java:217)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher$DequeueAndCheckForCompletion.run(SystemAlarmDispatcher.java:317)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4960)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
at dalvik.system.NativeStart.main(NativeStart.java)
at java.util.WeakHashMap$HashIterator.next(WeakHashMap.java:165)
at androidx.work.impl.utils.WakeLocks.checkWakeLocks(WakeLocks.java:70)
at androidx.work.impl.background.systemalarm.SystemAlarmService.onAllCommandsCompleted(SystemAlarmService.java:69)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher.dequeueAndCheckForCompletion(SystemAlarmDispatcher.java:217)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher$DequeueAndCheckForCompletion.run(SystemAlarmDispatcher.java:317)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4960)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
at dalvik.system.NativeStart.main(NativeStart.java)
sh...@google.com <sh...@google.com> #5
Will this be released in the next beta? Thanks
da...@gmail.com <da...@gmail.com> #6
Yes, it will.
da...@gmail.com <da...@gmail.com> #7
Seems like it's still not fixed:
Fatal Exception: java.util.ConcurrentModificationException
at java.util.WeakHashMap$HashIterator.next(WeakHashMap.java:165)
at androidx.work.impl.utils.WakeLocks.checkWakeLocks(WakeLocks.java:78)
at androidx.work.impl.background.systemalarm.SystemAlarmService.onAllCommandsCompleted(SystemAlarmService.java:69)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher.dequeueAndCheckForCompletion(SystemAlarmDispatcher.java:217)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher$DequeueAndCheckForCompletion.run(SystemAlarmDispatcher.java:317)
at android.os.Handler.handleCallback(Handler.java:810)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:189)
at android.app.ActivityThread.main(ActivityThread.java:5532)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)
Fatal Exception: java.util.ConcurrentModificationException
at java.util.WeakHashMap$HashIterator.next(WeakHashMap.java:165)
at androidx.work.impl.utils.WakeLocks.checkWakeLocks(WakeLocks.java:78)
at androidx.work.impl.background.systemalarm.SystemAlarmService.onAllCommandsCompleted(SystemAlarmService.java:69)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher.dequeueAndCheckForCompletion(SystemAlarmDispatcher.java:217)
at androidx.work.impl.background.systemalarm.SystemAlarmDispatcher$DequeueAndCheckForCompletion.run(SystemAlarmDispatcher.java:317)
at android.os.Handler.handleCallback(Handler.java:810)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:189)
at android.app.ActivityThread.main(ActivityThread.java:5532)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)
sc...@google.com <sc...@google.com> #8
Still happened on beta02, Android 5.0.2
tr...@google.com <tr...@google.com> #9
Sample app here: https://issuetracker.google.com/issues/121345393
It's hard to reproduce with SystemAlarmService.onAllCommandsCompleted. Only managed to do it once but it was just luck. The sample app crashes more often though.
It's hard to reproduce with SystemAlarmService.onAllCommandsCompleted. Only managed to do it once but it was just luck. The sample app crashes more often though.
mi...@google.com <mi...@google.com> #11
Thanks for the bug report and the sample app. Will take another look.
ap...@google.com <ap...@google.com> #12
Why are you calling a hidden method (WakeLocks#checkWakeLocks) yourself?
mi...@google.com <mi...@google.com> #13
Just to reproduce the crash faster. I don't call this on the production app.
mi...@google.com <mi...@google.com> #15
Thanks a lot for fixing it quickly ;)
ju...@google.com <ju...@google.com> #16
It still seems to happen for me using beta02:
java.util.WeakHashMap$HashIterator.next (WeakHashMap.java:165)
androidx.work.impl.utils.WakeLocks.checkWakeLocks (WakeLocks.java:78)
androidx.work.impl.background.systemalarm.SystemAlarmService.onAllCommandsCompleted (SystemAlarmService.java:69)
androidx.work.impl.background.systemalarm.SystemAlarmDispatcher.dequeueAndCheckForCompletion (SystemAlarmDispatcher.java:217)
androidx.work.impl.background.systemalarm.SystemAlarmDispatcher$DequeueAndCheckForCompletion.run (SystemAlarmDispatcher.java:317)
android.os.Handler.handleCallback (Handler.java:815)
android.os.Handler.dispatchMessage (Handler.java:104)
android.os.Looper.loop (Looper.java:194)
android.app.ActivityThread.main (ActivityThread.java:5624)
java.lang.reflect.Method.invoke (Method.java)
java.lang.reflect.Method.invoke (Method.java:372)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:959)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:754)
Stacktrace is from a X5pro running Android 5.1.
java.util.WeakHashMap$HashIterator.next (WeakHashMap.java:165)
androidx.work.impl.utils.WakeLocks.checkWakeLocks (WakeLocks.java:78)
androidx.work.impl.background.systemalarm.SystemAlarmService.onAllCommandsCompleted (SystemAlarmService.java:69)
androidx.work.impl.background.systemalarm.SystemAlarmDispatcher.dequeueAndCheckForCompletion (SystemAlarmDispatcher.java:217)
androidx.work.impl.background.systemalarm.SystemAlarmDispatcher$DequeueAndCheckForCompletion.run (SystemAlarmDispatcher.java:317)
android.os.Handler.handleCallback (Handler.java:815)
android.os.Handler.dispatchMessage (Handler.java:104)
android.os.Looper.loop (Looper.java:194)
android.app.ActivityThread.main (ActivityThread.java:5624)
java.lang.reflect.Method.invoke (Method.java)
java.lang.reflect.Method.invoke (Method.java:372)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:959)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:754)
Stacktrace is from a X5pro running Android 5.1.
Description
We're receiving these crash reports for our app on the Play Store (https://play.google.com/store/apps/details?id=app.grapheneos.camera.play ). I'm unsure why it's happening, but perhaps you can get one of these devices and reproduce it. Ideally, CameraX could at least start catching this exception and turning it into an error surfaced to the app.
We're mostly seeing these crashes from the Jio JioPhone Next which is a very widely used, very cheap device in India. The crash traceback is nearly identical across the around 5 device models where we've seen it with only minor variations in Camera2 implementation line numbers. All of the impacted devices are Android 11.