diff -r 860933a7787f -r 25e350c6385f vm/src/test/java/org/apidesign/vm4brwsr/Classes.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/Classes.java	Thu Nov 29 21:58:17 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/Classes.java	Sat Dec 01 08:52:30 2012 +0100
@@ -34,6 +34,10 @@
         return c1 != c2;
     }
     
+    public static String classForInstance() {
+        return new IOException().getClass().getName().toString();
+    }
+    
     public static String name() {
         return IOException.class.getName().toString();
     }