diff -r bb7506513353 -r 8ac637d7d62a rt/vm/src/test/java/org/apidesign/vm4brwsr/InstanceTest.java
--- a/rt/vm/src/test/java/org/apidesign/vm4brwsr/InstanceTest.java	Thu Feb 28 07:48:54 2013 +0100
+++ b/rt/vm/src/test/java/org/apidesign/vm4brwsr/InstanceTest.java	Sun Jun 22 00:09:56 2014 +0200
@@ -47,6 +47,13 @@
             Double.valueOf(31)
         );
     }
+    @Test public void noInstOfExposed() throws Exception {
+        assertExec(
+            "No instOf properties found",
+            Instance.class, "noInstOfExposed__I",
+            Double.valueOf(0)
+        );
+    }
     @Test public void verifyMagicOne() throws Exception {
         assertExec(
             "Should be three and something",