I have a parent class in Kotlin like this

open class Parent(
var name: String,
var dose: JsonElement?,
val other: String?) {
constructor(name: String, dose: JsonElement?)
    : this(
    name = name.toLowerCase(),
    dose = dose, 
    other = null
)
}

And its child class like this

class Child(
val type: String,
name: String,
dose: JsonElement?
 ) : Parent(name, dose), Parcelable {

constructor(parcel: Parcel) : this(
    parcel.readString() ?: "",
    parcel.readString() ?: "",
    Gson().fromJson(parcel.readString(), JsonElement::class.java))

override fun writeToParcel(parcel: Parcel, flags: Int) {
    parcel.writeString(type)
    parcel.writeString(name)
    parcel.writeString(Gson().toJson(dose))
}

override fun describeContents(): Int {
    return 0
}

companion object CREATOR : Parcelable.Creator<Child> {

    override fun createFromParcel(parcel: Parcel): Child {
        return Child(parcel)
    }

    override fun newArray(size: Int): Array<Child?> {
        return arrayOfNulls(size)
    }
}
}

My problem here is when I pass object of child class as parcelable only child class properties are propagated. All base class properties like name and dose are null after object is de-serialized.

I have cross-verified order of reading and writing and also verified that values are being written correctly at the time of serialization. Let me know if more information is needed from my side.