A modern programming language that makes developers happier.

kotlinlang

My project does have a reasonably large code-base: ```-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
Java                          4608          64536          50640         247843
Groovy                         929          17031           1390          72554
Kotlin                          37            277             57           1499
-------------------------------------------------------------------------------
SUM:                          5574          81844          52087         321896
-------------------------------------------------------------------------------
``` (this doesn't take into account libraries, of course), but in Java I do not have this performance issue at all, only in Kotlin code.