Scala program to print all properties of a hadoop config

Config.scala

import org.apache.hadoop.conf.Configured
import org.apache.hadoop.util.Tool
import org.apache.hadoop.util.ToolRunner
import scala.collection.JavaConversions._

object Config extends Configured with Tool {
  def run(args: Array[String]) : Int = {
    getConf.map(x => (x.getKey, x.getValue)).toList.sorted.foreach(println)
    return 0
  }
  
  def main(args: Array[String]) { ToolRunner.run(Config, args) }
}