# \[kotlinx.serializatinon\] Proper Registration of Primitives and Nulls in Polymorphic Serialization

**URL:** <https://discuss.kotlinlang.org/t/kotlinx-serializatinon-proper-registration-of-primitives-and-nulls-in-polymorphic-serialization/24860>\
**Category:** Libraries\
**Created:** [May 21, 2022, 7:24pm UTC](https://discuss.kotlinlang.org/t/kotlinx-serializatinon-proper-registration-of-primitives-and-nulls-in-polymorphic-serialization/24860 "2022-05-21T19:24:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mjgroth](https://avatars.discourse-cdn.com/v4/letter/m/d9b06d/32.png) [@mjgroth](https://discuss.kotlinlang.org/u/mjgroth)\
**Post date:** [May 21, 2022, 7:24pm UTC](https://discuss.kotlinlang.org/t/kotlinx-serializatinon-proper-registration-of-primitives-and-nulls-in-polymorphic-serialization/24860/1 "2022-05-21T19:24:23Z")

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I just wanted to notify these forums that I posted a question on Stack Overflow [here](https://stackoverflow.com/questions/72325605/how-to-properly-register-primitives-and-nulls-in-polymorphic-serialization) about including nulls and primitives and polymorphic serialization