diff -r a2e90b86638a -r a72eecb99952 samples/erasure/src-api2.0/api/Erasure.java
--- a/samples/erasure/src-api2.0/api/Erasure.java	Tue Oct 18 07:10:23 2011 +0200
+++ b/samples/erasure/src-api2.0/api/Erasure.java	Wed Aug 08 22:25:24 2012 +0200
@@ -1,13 +1,13 @@
 package api;
 
-import java.util.Set;
+import java.util.Collection;
 
 public class Erasure {
     private Erasure() {
     }
 
     // BEGIN: variance.erasure.v2
-    public static boolean arePositive(Set<? extends Number> numbers) {
+    public static boolean arePositive(Collection<? extends Number> numbers) {
         for (Number n : numbers) {
             if (n.doubleValue() <= 0.0d) {
                 return false;