diff -r ca1be5fbe6ff -r 7c15faa95ce7 src/share/vm/runtime/vmStructs.hpp
--- a/src/share/vm/runtime/vmStructs.hpp	Wed Nov 21 21:26:12 2012 -0500
+++ b/src/share/vm/runtime/vmStructs.hpp	Tue Nov 27 07:57:57 2012 -0800
@@ -123,6 +123,11 @@
   // the data structure (debug build only)
   static void init();
 
+#ifndef PRODUCT
+  // Execute unit tests
+  static void test();
+#endif
+
 private:
   // Look up a type in localHotSpotVMTypes using strcmp() (debug build only).
   // Returns 1 if found, 0 if not.