--- old/src/hotspot/share/memory/universe.cpp	2017-10-13 18:26:30.284227812 -0400
+++ new/src/hotspot/share/memory/universe.cpp	2017-10-13 18:26:29.911198918 -0400
@@ -536,7 +536,7 @@
 
 oop Universe::swap_reference_pending_list(oop list) {
   assert_pll_locked(is_locked);
-  return (oop)Atomic::xchg_ptr(list, &_reference_pending_list);
+  return Atomic::xchg(list, &_reference_pending_list);
 }
 
 #undef assert_pll_locked