--- a/hotspot/src/share/vm/memory/referenceProcessor.cpp	Tue Mar 31 11:34:35 2015 +0200
+++ b/hotspot/src/share/vm/memory/referenceProcessor.cpp	Mon Mar 30 10:24:00 2015 -0400
@@ -676,7 +676,6 @@
   ResourceMark rm;
   DiscoveredListIterator iter(refs_list, keep_alive, is_alive);
   while (iter.has_next()) {
-    iter.update_discovered();
     iter.load_ptrs(DEBUG_ONLY(false /* allow_null_referent */));
     if (clear_referent) {
       // NULL out referent pointer
@@ -693,8 +692,6 @@
     assert(iter.obj()->is_oop(UseConcMarkSweepGC), "Adding a bad reference");
     iter.next();
   }
-  // Remember to update the next pointer of the last ref.
-  iter.update_discovered();
   // Close the reachable set
   complete_gc->do_void();
 }

--- a/hotspot/src/share/vm/memory/referenceProcessor.hpp	Tue Mar 31 11:34:35 2015 +0200
+++ b/hotspot/src/share/vm/memory/referenceProcessor.hpp	Mon Mar 30 10:24:00 2015 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -173,20 +173,6 @@
     }
   }
 
-  // Update the discovered field.
-  inline void update_discovered() {
-    // First _prev_next ref actually points into DiscoveredList (gross).
-    if (UseCompressedOops) {
-      if (!oopDesc::is_null(*(narrowOop*)_prev_next)) {
-        _keep_alive->do_oop((narrowOop*)_prev_next);
-      }
-    } else {
-      if (!oopDesc::is_null(*(oop*)_prev_next)) {
-        _keep_alive->do_oop((oop*)_prev_next);
-      }
-    }
-  }
-
   // NULL out referent pointer.
   void clear_referent();