Switching from Java to Kotlin

You want to do your everyday programming in modern language, that has nice functional programming features, that is less verbose and more concise than Java, but you don't want to give up on static type system and benefits that it provides?You want better language but you don't want to give up all java frameworks and libraries that you are using happily for years? A lot of different JVM languages emerged lately so there are many options, but if you want to switch from Java with minimum effort and risk, Kotlin is probably the best choice for you.