Kotlin is still way ahead of Java with IMO essential features like: - Explicit null - Extension methods - Getters/setters which use property syntax - == ins

Kotlin is still way ahead of Java with IMO essential features like: - Explicit null - Extension methods - Getters/setters which use property syntax - == instead of Object.equals confusion Also Kotlin's this-scoping and delegated properties, while they take a while to get used to, can be incredibly useful. They make it possible for to write typesafe DSLs like kotlin-html. Moreover, Kotlin is usually very easy to integrate with existing Java projects. Setting up Kotlin in Gradle is just adding a plugin, and Kotlin automatically imports and exports java code. And it runs on the JVM so it will support most platforms that also support Java. And one of the top Java IDEs and contributors (JetBrains) maintains and prioritizes Kotlin.