realm-java: io.realm.exceptions.RealmFileException: Realm file is currently open in another process which cannot share access with this process. All processes sharing a single file must be the same architecture. Incompatible lock file. Shared info version doesn't match, 7 10.

Goal

I was simply trying to update Realm from 0.90.1 to 3.3.1.

Expected Results

Normal app behaviour.

Actual Results

We get reports (Crashlytics) of

io.realm.exceptions.RealmFileException: Realm file is currently open in another process which cannot share access with this process. All processes sharing a single file must be the same architecture. Incompatible lock file. Shared info version doesn't match, 7 10

happening only on Android 4.4.*.

Steps & Code to Reproduce

Not able to reproduce.

Code Sample

The way we use Realm:

• we init Realm with Realm.init(this); in Application.onCreate() callback
• we provide Realm.getDefaultInstance() via Dagger2 (AppComponent/AppModule) in MainActivity

    @Provides
    @ApplicationScope
    public Realm provideRealm(RealmConfiguration configuration) {
        Realm.setDefaultConfiguration(configuration);
        return Realm.getDefaultInstance();
    }

• we do Realm.getDefaultInstance().close() in Application.ActivityLifecycleCallbacks.onActivityDestroyed(), but only when the Activitys count is 0
• not sure if that is relevant (Widgets are my current lead here), but we do provide widgets and inject dependencies to WidgetService (these dependencies do depend on Realm, so Realm.getDefaultInstance() is called when widgets gets refreshed

Version of Realm and tooling

Realm version(s): 0.90.1 to 3.3.1

Realm sync feature enabled: no

Android Studio version: Android Studio 3.0 Canary 4

Which Android version and device: 4.4.* ONLY