Android java.lang.NoClassDefFoundError: FakerService$$ExternalSyntheticLambda1

[vad99lord]

I'm getting NoClassDefFoundError when creating Faker instance on android API 22.

java.lang.NoClassDefFoundError: io.github.serpro69.kfaker.FakerService$$ExternalSyntheticLambda1
        at io.github.serpro69.kfaker.FakerService.load(FakerService.kt:67)
        at io.github.serpro69.kfaker.FakerService.<init>(FakerService.kt:32)
        at io.github.serpro69.kfaker.Faker.<init>(Faker.kt:14)
        at io.github.serpro69.kfaker.Faker.<init>(Faker.kt:13)

The issue seems to be connected with calling defaultValues.merge() in private fun load(locale: String): Dictionary in the following place:

readCategory(it, "en").entries.forEach { category ->
                if (defaultValues.containsKey(category.key)) {
                    defaultValues.merge(category.key, category.value) { t, u -> t.plus(u) }
                } else defaultValues[category.key] = category.value
            }

I can see that it's not available in Kotlin API and Java API is used. According to android docs merge() is available since API 24 and I have no issues running the code on API 30.

I don't know if you are going to handle this android-specific case but i think it could be possible to update merging using Kotlin API only similar to this gist.

[serpro69]

Hi @vad99lord ,

I have no issues supporting android-specific cases, but reproducing issues on android platform is harder for me because I don't work with android apps.
Would you be willing to make a PR with the fix? If not, I can also add a fix, but then it could potentially involve some back-and-forth to test if it's actually working.
I also haven't had much time to work on side-projects since summer, but I hope I'll have more time from October, so I will definitely look into this if you don't want to try to fix this yourself and make a PR.
Let me know how you want to proceed with this.

[serpro69]

@vad99lord , I've removed usages of merge function from FakerService and this should be available in the latest 1.8.0-snapshot version.
Please test and let me know if it's working, or re-open the issue otherwise.

[vad99lord]

Hello @serpro69,

Sorry for the slow reply. The latest snapshot is working for me on both emulator and physical device with no problems. Thanks a lot for providing a quick fix to this issue.