Hello! I have a simple class: ```@Serializable dat...

# serialization

[Lamberto Basti]

Hello! I have a simple class:

@Serializable
data class CacheEntry<T>(
    val data: T,
    @SerialName("_id") val id: String,
    val lastUpdate: Instant = Clock.System.now()
)

And i need to look up its serializer from its Java Class<CacheEntry<*>>. I am writing a custom format and it has its serializer module initialized with:

val serializersModule: SerializersModule = EmptySerializersModule()

And I do:

override fun <T : Any> asDocument(`object`: T): Document =
    nitriteDocument.encodeToDocument(
        serializer = nitriteDocument.serializersModule.serializer(`object`.javaClass),
        element = `object`
    )

But it errors with:

kotlinx.serialization.SerializationException: Serializer for class 'CacheEntry' is not found.
Please ensure that class is marked as '@Serializable' and that the serialization compiler plugin is applied.

Yes the plugin is very much applied!

Any clue why this happens?

[ephemient]

there is no generic serializer, it needs the serializer for the type parameters

[ephemient]

which isn't carried in the run-time Class due to erasure