Component used: WorkManager
Version used: android.arch.work:work-runtime:1.0.0-alpha03
Devices/Android versions reproduced on: any

Stacktrace:
Caused by: java.lang.NullPointerException:
at androidx.work.impl.background.systemjob.SystemJobService.onCreate (SystemJobService.java:52)
at android.app.ActivityThread.handleCreateService (ActivityThread.java:3267)
at android.app.ActivityThread.-wrap5 (ActivityThread.java)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1641)
at android.os.Handler.dispatchMessage (Handler.java:102)
at android.os.Looper.loop (Looper.java:163)
at android.app.ActivityThread.main (ActivityThread.java:6379)
at java.lang.reflect.Method.invoke (Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:794)

Description:
Hi,

Yes, I know its a duplicate of https://issuetracker.google.com/issues/109894190, but it crashing our app a lot even given we are properly initializing your library.
We released first version of our app with WorkManager with alpha02 library and without any explicit calls to WorkManager.initialize(...) and received a lot of NPEs in our tracker for all the places with WorkManager.getInstance() calls in our code and internally in the library. We don't have multiple processes so I was sure you default initialization with empty ContentProvider should work. But looks like its not always working! (maybe it is not always working on devices based on modified Android forks?) I can't reproduce it manually, but I have a lot of submitted crashes.
Well, we added WorkManager.initialize(this, new Configuration.Builder().build()); inside our Application.onCreate() before calling super.onCreate(); and it indeed helped. We had no such exceptions on the next release.
But for the next release after it we updated library version to alpha03 and it started crashing a lot again. Even as we still have WorkManager.initialize(...) inside Application.onCreate(). Guys, issues like this are making adapting your library into real applications quite complicated, please consider reworking of the library initialization to make it more predictable.
I see that mostly it is crashing on Xiaomi devices, attaching screenshot with devices list.