A modern programming language that makes developers happier.

kotlinlang

Okay, this seems to be the solution I should have used first:
```
    val files = ArrayList&lt;Path&gt;()

    class fileVisitor : SimpleFileVisitor&lt;Path&gt;() {

        override fun visitFile(path: Path, fileAttributes: BasicFileAttributes) : FileVisitResult {
            println(path)
            files.add(path)
            return CONTINUE
        }
    }
```
Again, I got tripped up doing things the Scala way instead of the Java way. I just don't grok collections in Kotlin yet.