Viable for Kotlin?

Would this be recommended to use for a Kotlin/Java project, or rather, would this still work in Kotlin project? Kotlin has null-safety built-in, but it doesn't protect against instances where the network response is null for a non-null property when [using something like GSON](https://bytes.babbel.com/en/articles/2018-05-25-kotlin-gson-nullability.html).