--- old/src/share/vm/memory/iterator.hpp	2017-04-25 11:30:59.092768670 +0200
+++ new/src/share/vm/memory/iterator.hpp	2017-04-25 11:30:58.940762694 +0200
@@ -68,11 +68,11 @@
   // Iteration of InstanceRefKlasses differ depending on the closure,
   // the below enum describes the different alternatives.
   enum ReferenceIterationMode {
-    DO_DISCOVERY, // Tries to discover references
+    DO_DISCOVERY, // Apply closure and discover references
     DO_FIELDS     // Apply closure to all fields
   };
 
-  // The current default iteration mode is to do discovery.
+  // The default iteration mode is to do discovery.
   virtual ReferenceIterationMode reference_iteration_mode() { return DO_DISCOVERY; }
 
   // If the do_metadata functions return "true",