Jsonproperty Not Working While Minification Enabled

I have the following class class CodeRequest(@JsonProperty('phone') val phoneNumber: String) When I send request (using retrofit) with an object of this class as body (while minif

Solution 1:

Found solution a couple of minutes after posting the question. The problem is not with proguard nor jackson, it's that Kotlin erases required data which are stored in kotlin.Metadata. Adding the following rule to proguard fixed the issue:

-keep class kotlin.Metadata { *; }