I’m writing an annotation processor using Kapt and KotlinPoet; am I correct in thinking that there is no way to detect nullability on parameterized type values? i.e. I cannot distinguish

myMap: Map<String,Any>

from

myMap: Map<String,Any?>

, because both of those turn into Java

Map<String,Object>

from the standpoint of the annotation processor. Is there any way to distinguish them? As a workaround I’m considering adding an additional annotation

@HasNullValue

but it’s a bit of a hack.

You can read the

kotlin.Metadata

annotation and then use

kotlinx.metadata.jvm

to parse the metadata values and obtain precise kotlin types. https://github.com/JetBrains/kotlin/tree/master/libraries/kotlinx-metadata/jvm

Ah! That makes sense. Skimmed right over it. Thanks!