Xtend Functional processing http://aruld.info/why-java-8-will-be-a-top-contender-for-java-next-languages/

gistfile1.xtend

def static void main(String[] args) {
    val employees = Arrays.asList("neal", "s", "stu", "j", "rich", "bob")
    val result = employees.stream
	 .filter[length() > 1]
	 .map[toFirstUpper()]
	 .reduce[x, y | x + "," + y]
}

// without map()
def static void main(String[] args) {
    val employees = Arrays.asList("neal", "s", "stu", "j", "rich", "bob")
    val result = employees.stream
	 .filter[length() > 1]
	 .reduce[x, y | x.toFirstUpper + "," + y.toFirstUpper]
}