A modern programming language that makes developers happier.

kotlinlang

```
Using kotlin incremental compilation
w: The '-d' option with a directory destination is ignored because '-module' is specified
w: Runtime JAR files in the classpath should have the same version. These files were found in the classpath:
    /home/dima/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.1.0/96a07041a11a09cf578892932d7511e1e11e3b6c/kotlin-stdlib-1.1.0.jar (version 1.1)
    /home/dima/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-runtime/1.1.0/18ef474326d3d4bb717e851f7504e1be87c4f674/kotlin-runtime-1.1.0.jar (version 1.1)
    /home/dima/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/1.0.2-1/e9f08fcc95060a4cafa78ffa4b18dcbb38c70141/kotlin-reflect-1.0.2-1.jar (version 1.0)
w: Consider providing an explicit dependency on kotlin-reflect 1.1 to prevent strange errors
w: Some runtime JAR files in the classpath have an incompatible version. Consider removing them from the classpath or use '-Xskip-runtime-version-check' to suppress this warning
```

but I am not even using kotlin-reflect in my project, and I don't want to add it, or should I do it anyway?