--- a/src/hotspot/share/gc/g1/g1FullGCOopClosures.hpp	Thu Apr 19 09:15:17 2018 +0200
+++ b/src/hotspot/share/gc/g1/g1FullGCOopClosures.hpp	Thu Apr 19 07:54:50 2018 +0200
@@ -60,7 +60,7 @@
   uint _worker_id;
 
 public:
-  G1MarkAndPushClosure(uint worker, G1FullGCMarker* marker, ReferenceProcessor* ref) :
+  G1MarkAndPushClosure(uint worker, G1FullGCMarker* marker, ReferenceDiscoverer* ref) :
     _marker(marker),
     _worker_id(worker),
     ExtendedOopClosure(ref) { }