A modern programming language that makes developers happier.

kotlinlang

```
───── klaxon:compile
Downloaded artifact org.jetbrains.kotlin:kotlin-reflect:pom:1.2.10 from Maven (<http://repo1.maven.org/maven2/>, default, releases+snapshots)
Downloaded artifact org.jetbrains.kotlin:kotlin-reflect:jar:1.2.10 from Maven (<http://repo1.maven.org/maven2/>, default, releases+snapshots)
  Kotlin 1.2.0 compiling 23 files
  Java compiling 1 file
warning: [options] bootstrap class path not set in conjunction with -source 1.7
```