Enum annotations in Kotlin

I have an enumeration that is serialized/deserialized by Gson:

enum class PacketType {
    NONE;
    [SerializedName("request")]
    REQUEST;
    [SerializedName("response")]
    RESPONSE;
    [SerializedName("event")]
    EVENT;
}

Unfortunately, I noticed that Gson ignores SerializedName annotations and uses upper case names for enum values. I decided to find out why serialization doesn't work as intended and found out that Kotlin drops all annotations for enum values. How can I make these annotations appear in generated bytecode?

Solution

Looks like a bug to me. Please report to the issue tracker.

As a temporary workaround, you can write this class in Java

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