NoClassDefFoundError

[dev-eof]

I get this error when initialization block is reached in the Application class despite OneSignal Android SDK » 5.1.35 having the class and setup correctly:

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/onesignal/notifications/internal/restoration/impl/NotificationRestoreWorkManager$NotificationRestoreWorker;
	at com.onesignal.notifications.internal.restoration.impl.NotificationRestoreWorkManager.<clinit>(NotificationRestoreWorkManager.kt:68)
	at java.lang.reflect.Constructor.newInstance0(Native Method)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
	at com.onesignal.common.services.ServiceRegistrationReflection.resolve(ServiceRegistration.kt:85)
	at com.onesignal.common.services.ServiceProvider.getServiceOrNull(ServiceProvider.kt:75)
	at com.onesignal.common.services.ServiceProvider.getService(ServiceProvider.kt:65)
	at com.onesignal.common.services.ServiceRegistrationReflection.resolve(ServiceRegistration.kt:78)
	at com.onesignal.common.services.ServiceProvider.getServiceOrNull(ServiceProvider.kt:75)
	at com.onesignal.common.services.ServiceProvider.getService(ServiceProvider.kt:65)
	at com.onesignal.common.services.ServiceRegistrationReflection.resolve(ServiceRegistration.kt:78)
	at com.onesignal.common.services.ServiceProvider.getServiceOrNull(ServiceProvider.kt:75)
	at com.onesignal.common.services.ServiceProvider.getService(ServiceProvider.kt:65)
	at com.onesignal.common.services.ServiceRegistrationReflection.resolve(ServiceRegistration.kt:78)
	at com.onesignal.common.services.ServiceProvider.getServiceOrNull(ServiceProvider.kt:75)
	at com.onesignal.common.services.ServiceProvider.getService(ServiceProvider.kt:65)
	at com.onesignal.common.services.ServiceRegistrationReflection.resolve(ServiceRegistration.kt:78)
	at com.onesignal.common.services.ServiceProvider.getAllServices(ServiceProvider.kt:53)
	at com.onesignal.core.internal.startup.StartupService.bootstrap(StartupService.kt:20)
	at com.onesignal.internal.OneSignalImp.initWithContext(OneSignalImp.kt:256)
	at com.onesignal.OneSignal.initWithContext(OneSignal.kt:135)
	at com.testing.app.SketchApplication.onCreate(SketchApplication.java:133)
	at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1277)
	at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6811)
	at android.app.ActivityThread.-$$Nest$mhandleBindApplication(Unknown Source:0)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2133)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loopOnce(Looper.java:201)
	at android.os.Looper.loop(Looper.java:288)
	at android.app.ActivityThread.main(ActivityThread.java:7924)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:937)
Caused by: java.lang.ClassNotFoundException: com.onesignal.notifications.internal.restoration.impl.NotificationRestoreWorkManager$NotificationRestoreWorker
	... 32 more

[jkasten2]

@CarlosCMD Thanks for reporting. If you are seeing this issue even after doing a clean build then the issue is most likely due to aggressive minification settings in your project.

Can you share the following details?

1. Which Android versions crash? Are there any that don't crash?
2. What version of Gradle and AGP (Android Gradle Plugin) are you using?
3. Share you minification settings file. (look for the file(s) you have listed under proguardFiles in your build.gradle)
4. Please also try adjusting your minification settings, let us know if you are able to rule out any specific settings to narrow things down.

[dev-eof]

@CarlosCMD Thanks for reporting. If you are seeing this issue even after doing a clean build then the issue is most likely due to aggressive minification settings in your project.

Can you share the following details?

1. Which Android versions crash? Are there any that don't crash?

2. What version of Gradle and AGP (Android Gradle Plugin) are you using?

3. Share you minification settings file. (look for the file(s) you have listed under `proguardFiles` in your `build.gradle`)

4. Please also try adjusting your minification settings, let us know if you are able to rule out any specific settings to narrow things down.

Testing on Android 13, work-runtime-ktx and work-runtime seems to cause this as errors varies with sometimes being WM-WorkerFactory: Could not instantiate com.onesignal.notifications.internal.restoration.impl.NotificationRestoreWorkManager$NotificationRestoreWorker.

[jkasten2]

@CarlosCMD thanks for some of the details. com.onesignal.notifications.internal.restoration.impl.NotificationRestoreWorkManager does depend on work-runtime but the crash you reported doesn't report that the worker runtime itself is missing.

As a next step I recommend turning off minification in your project to confirm this is the cause of the crash, then share your minification settings.

[dev-eof]

Thanks, I was able to fix this with a clean build, the work-runtime was outdated as it seems(my bad).