[Feature] add support for kotlinx.serialization as JsonMapper

[gmariotti]

[Feature] add support for kotlinx.serialization as JsonMapper

[rdehuyss]

Hi @gmariotti , we're definitely open for PR's. The only important thing to keep in mind is to make sure there are some tests.

[gmariotti]

Thanks for the fast answer @rdehuyss 🙏 in which module should I develop it? In core, like the other mappers, or in language-support?

[rdehuyss]

I would do it in the language-support module for kotlin 1.9 as it will only be relevant for Kotlin.. If you add a test that extends the Java AbstractJsonMapperTest, I think we're ok (the AbstractJsonMapperTest may have to move to TestFixtures though).

[rdehuyss]

Please also use the v7 branch for your work as we're about to release the first v7 release candidate.

[alexanderpichler-cpi]

@gmariotti I can help you if you want

[gmariotti]

@alexanderpichler-cpi I'm hoping to get back to it this weekend, but if I don't, I'll let you know