UnexpectedException with ksp.useKSP2=true

[j-roskopf]

When enabling ksp.useKSP2=true in my gradle.properties ksp fails for a module in my project. When removing ksp.useKSP2=true, it works as expected.

> Task :navigation-android:kspReleaseKotlin FAILED
e: [ksp] dagger.internal.codegen.base.DaggerSuperficialValidation$ValidationException$UnexpectedException: 
  Validation trace:
    => element (OBJECT): handler.di.NavHandlersModule
    => element (METHOD): provideNavHandlers(java.util.Map<java.lang.Class<?>,handler.NavHandler<?>>)
    => element (PARAMETER): handlers
    => type (DECLARED parameter type): java.util.Map<java.lang.Class<?>,handler.NavHandler<?>>
    => type (DECLARED type argument): java.lang.Class<?>

NavHandlersModule.kt

@Module
@InstallIn(SingletonComponent::class)
object NavHandlersModule {
  @Provides
  @Singleton
  fun provideNavHandlers(
    handlers: @JvmSuppressWildcards Map<Class<*>, NavHandler<*>>
  ): NavHandlers {
    return NavHandlers(handlers)
  }
}

NavHandler.kt

abstract class NavHandler<B : NavBundle> {
  abstract fun handle(bundle: B, host: NavHost, additionalHandlerParams: AdditionalHandlerParams)
}

NavBundle.kt

abstract class NavBundle

data object PhotoBundle : NavBundle()

@Module
@InstallIn(SingletonComponent::class)
interface PhotoNavHandlerModule {
  @Binds
  @IntoMap
  @ClassKey(PhotoBundle::class)
  fun bindPhotoNavHandler(it: PhotoNavHandler): NavHandler<*>
}

ksp version: 2.0.10-1.0.24
kotlin version: 2.0.10

Please let me know if there is any more info I can provide!