diff -r e7ea061e669c -r 84920274cb32 vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java	Thu Nov 22 00:08:57 2012 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/StringSample.java	Tue Nov 27 22:22:48 2012 +0100
@@ -64,6 +64,10 @@
         return h.hashCode();
     }
     
+    public static boolean isStringInstance() {
+        return chars('a', (char)30, 'b') instanceof String;
+    }
+    
     public static String insertBuffer() {
         StringBuilder sb = new StringBuilder();
         sb.append("Jardo!");