Does anyone know how construct KClass from Java? The reason I'm asking because I'm integrating a library into my app which uses a factory interface defined in Java, and I need to know from Java if class is in actual fact an Object instance?

Haha, late response, but the answer is:

kotlin.jvm.JvmClassMappingKt.getKotlinClass(Test.class)

https://kotlinlang.org/docs/reference/java-to-kotlin-interop.html#kclass to check if it is an object:

JvmClassMappingKt.getKotlinClass(Test.class)
    .getObjectInstance()==null

Thanx.