Minor beautification of iterator example.

1 files changed, 3 insertions, 2 deletions

diff --git a/docs/examples/actors/joins5.scala b/docs/examples/actors/joins5.scala
index 44faa4ed53..0a958bc768 100644
--- a/docs/examples/actors/joins5.scala
+++ b/docs/examples/actors/joins5.scala
@@ -11,6 +11,9 @@ abstract class Producer[T] {
   /** A label for an undefined state of the iterators. */
   private val Undefined = new Object
 
+  /** A signal to stop the coordinator. */
+  private val Stop = new Object
+
   protected def produce(x: T): unit = {
     coordinator ! Some(x)
     receive { case Next => }
@@ -34,8 +37,6 @@ abstract class Producer[T] {
     }
   }
 
-  case object Stop
-
   private val coordinator: Actor = actor {
     var continue = true
     while (continue) {