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Is there any alternative for JSON serialization in KMP, I am currently using kotlinx serialization?

Not really. What's wrong with kotlinx.serialization?

the point of kotlin multiplatform is to use the platform APIs if needed. Why not just do that?

<@U79JY5TL3> I am using my KMP library in my Java backend project. In which I have some serialization code. Now while calling the serializer from my Java end I am getting this issue,
`Exception in thread "main" java.lang.NoClassDefFoundError: kotlinx/serialization/json/Json`
        `at codes.pratik.kmmlibrary.form.FormLogic.setRules(FormLogic.kt:400)`
        `at form.FormListener.initiate(FormListener.java:19)`
        `at App.main(App.java:12)`
`Caused by: java.lang.ClassNotFoundException: kotlinx.serialization.json.Json`
        `at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)`
        `at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)`
        `at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)`
        `... 3 more`

I have asked this same question before on community but didn't get any answers, so I am searching for an alternative.

Looks like a classloading issue. If you can share a reproducer this should be fixable

Sure, I will make a miniature version of my use case.

<@U79JY5TL3> I created the sample project demonstrating my issue with serialization. here is the link to the project,
<https://github.com/pratik-kate/KMMLibrary>

You can build the .jar file using `gradle jvmjar` and use that jar file in any sample Java project. If you want I can share that Java project too.

Here is the Java project with .jar file integration generated from KMM library
<https://github.com/pratik-kate/KMM>

This is the problem. The .jar alone is not enough, you need the dependencies. This is the same for all JSON parsers.

I recommend you publish to a maven repository and Gradle will pull dependencies for you

Or else you will need a fat jar <https://www.baeldung.com/gradle-fat-jar|https://www.baeldung.com/gradle-fat-jar>

Thank you so much, I will try creating Fat Jar.