Dependency conflict in JUnit tests

[NicolasDucom]

Hi,
I'm asking this here since it's probably a configuration issue on my end. 🤞
I'm trying to move from SimpleXML to XMLUtil (with Kotlinx Serialization and a custom Converter for Retrofit), I'm a bit unsure which dependency to include as of 0.91.0.
As of right now I have no issues getting this to work with io.github.pdvrieze.xmlutil:serialization-jvm:0.91.0.
However when trying to run unit tests I run into this issue :

A failure occurred while executing com.android.build.gradle.internal.tasks.MergeJavaResWorkAction
   2 files found with path 'META-INF/services/nl.adaptivity.xmlutil.util.SerializationProvider' from inputs:
      - io.github.pdvrieze.xmlutil:serialization-jvm:0.91.0/serialization-jvm-0.91.0.jar
      - io.github.pdvrieze.xmlutil:core-jvmcommon:0.91.0/core-jvmcommon-0.91.0.jar

Is there some configuration I'm missing for unit tests ?
I'm currently on Kotlin 2.0.21 and AGP 8.10.0 on a non KMP android App
Thanks !

[pdvrieze]

The problem here is where Android tries to merge the two jar files, but does not understand service loaders (and as such doesn't know how to deal with multiple providers). The underlying services are deprecated and only there for compatibility (so you don't need either file). Have a look at: https://stackoverflow.com/questions/69761945/2-files-found-with-path-meta-inf-lgpl2-11 that shows how to deal with it (excluding is fine).

[NicolasDucom]

I've tried merge/exclude and pickFirst but I dont think these packaging configurations are taken into account when building for simple JVM Unit Tests (i've tried cleaning and manually deleting cache files just in case).

[pdvrieze]

For regular unit tests merging should not even be invoked across modules. Do you have some plugins running that do stuff with libraries? This seems to be an Android/Gradle problem.

It may be worthwhile to provide a simple replicator project (or you may find that redoing the build logic will fix things).

[NicolasDucom]

Hey Paul,
I've just tried creating the basic Sample Project Android studio provides and adding a dependency to io.github.pdvrieze.xmlutil:serialization-jvm (it's the only dependency I've added on top of the ones provided by the sample project) and can reproduce this, I've provided it here.
Could I be missing something else ?

[pdvrieze]

Thanks for the replicator. I've managed to figure it out. You are using an old alpha version of the android gradle plugin (8.10.0-alpha08). The problem disappears when either using the latest stable version (8.9.1) - using Android Studio Meerkat; or when using Narwhal either version 8.10.0-rc01 or the latest: 8.11.0-alpha05

[NicolasDucom]

Thanks for the insight !
I can confirm that reverting to 8.9.1 fixes the issue. Out of curiosity, what led you to AGP ? (after checking on the issuetracker I suppose this issue was the one causing trouble).

[pdvrieze]

I first loaded it up in Meerkat. That complained about the AGP version, so I put it to the supported AGP version for Meerkat. The problem was gone. Obviously then it is easy to put the version back to yours, and ran gradle by hand: the problem was there.