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diff --git a/docs/examples/jolib/Ref.scala b/docs/examples/jolib/Ref.scala
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+/*                     __                                               *\
+**     ________ ___   / /  ___     Scala API                            **
+**    / __/ __// _ | / /  / _ |    (c) 2003, LAMP/EPFL                  **
+**  __\ \/ /__/ __ |/ /__/ __ |                                         **
+** /____/\___/_/ |_/____/_/ | |                                         **
+**                          |/                                          **
+** $Id$
+\*                                                                      */
+
+package examples.jolib;
+/*
+import concurrent.SyncVar;
+import concurrent.jolib._;
+
+class Ref[a](init: a) extends Join {
+
+  object get extends Synchr[a](this) { case class C() extends SyncVar[a]; }
+  object set extends Synchr[unit](this) { case class C(x: a) extends SyncVar[unit]; }
+  object state extends Asynchr(this) { case class C(x: a); }
+
+  rules (
+    Pair(List(get, state), { case List(g @ get.C(), state.C(x) ) =>
+      { g.set(x); state(state.C(x)) } }),
+    Pair(List(set, state), { case List(s @ set.C(x), state.C(y) ) =>
+      { s.set(()); state(state.C(x)) } })
+  );
+
+  state(state.C(init));
+
+  def Get: a = get(get.C());
+  def Set(x: a): unit = set(set.C(x));
+}
+*/
+object RefTest {
+
+  def main(args: Array[String]) = {
+    System.out.println("Started.");
+/*
+    concurrent.ops.spawn({
+      val r1 = new Ref(0);
+      System.out.println("Reference r1 created.");
+      System.out.println("Value r1 (first time) = " + r1.Get);
+      r1.Set(42);
+      System.out.println("Value r1 (second time) = " + r1.Get);
+    });
+    concurrent.ops.spawn({
+      val r2 = new Ref(100);
+      System.out.println("Reference r2 created.");
+      System.out.println("Value r2 (first time) = " + r2.Get);
+      r2.Set(89);
+      System.out.println("Value r2 (second time) = " + r2.Get);
+    });
+*/
+  }
+
+}