How to make a zip file in scala (Java 8)

makeZip.scala

import java.io.FileOutputStream
import java.nio.file.{Files, Paths, Path, FileVisitResult}
import java.nio.file.attribute.BasicFileAttributes
import java.nio.file.SimpleFileVisitor

def autoClosing[C <: Closeable, T](closeable: C)(c: C => T) = {
		try {
			c(closeable)
		} finally {
			closeable.close()
		}
	}

implicit class CloseableOps[C <: Closeable](resource: C) {
  def map[B](f: C => B): B = autoClosing(resource)(f)
  def flatMap[B](f: C => B): B = autoClosing(resource)(f)
}

	def makeZip(directory: Path) {
		import java.util.zip._
		val zipName = directory.getFileName() + ".zip"
		for {
			fis <- new FileOutputStream(zipName)
			zos <- new ZipOutputStream(fis)
		} yield {
			Files.walkFileTree(directory, new SimpleFileVisitor[Path] {
				override def visitFile(path: Path, attrs: BasicFileAttributes): FileVisitResult = {
					/* Add it to the zip file if its a file */
					if (attrs.isRegularFile()) {
						val zipEntryName = {
							path.subpath(
								directory.getNameCount(),
								path.getNameCount() // subpath has an exclusive bound, so use getNameCount and not getNameCount - 1
							).toString
						}
						println(s"Writing to zip: ${zipEntryName}")
						val zipEntry = new ZipEntry(zipEntryName)
						zos.putNextEntry(zipEntry)
						val bytesToWrite = Files.readAllBytes(path)
						zos.write(bytesToWrite, 0, bytesToWrite.size)
						zos.closeEntry()
					}
					FileVisitResult.CONTINUE
				}
			})
		}
	}