Parsing java properties files with Scala

parse_properties.scala

import scala.io.Source.fromFile

def parseProperties(filename: String): Map[String,String] = {
  val lines = fromFile(filename).getLines.toSeq
  val cleanLines = lines.map(_.trim).filter(!_.startsWith("#")).filter(_.contains("="))
  cleanLines.map(line => { val Array(a,b) = line.split("=",2); (a.trim, b.trim)}).toMap
}