What Does Kotlin Buy You at Runtime?

Photo by Isis França on Unsplash

A strong Java developer, suspicious of Kotlin, challenged me with an interesting question, “What does Kotlin buy you at runtime?” It’s an interesting question because Kotlin runs on the JVM, what can it possibly do for you at runtime? This developer, with strong Java development skills, seemed to feel that any language running on the JVM, brought little if anything to the table if you really knew your Java. In a way I get…