diff -r 5452b9fbd253 -r a9be982d9b9c vm/src/test/java/org/apidesign/vm4brwsr/Exceptions.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/Exceptions.java	Mon Dec 31 12:44:51 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/Exceptions.java	Mon Dec 31 17:50:27 2012 +0100
@@ -61,4 +61,14 @@
             return ex.getMessage();
         }
     }
+    
+    private static int counter;
+    public static int readCounter(String n) throws ClassNotFoundException {
+        try {
+            Class.forName(n);
+        } finally {
+            counter++;
+        }
+        return counter;
+    }
 }