--- old/src/hotspot/share/gc/g1/g1ParScanThreadState.hpp	2019-02-15 14:22:00.609091441 +0100
+++ new/src/hotspot/share/gc/g1/g1ParScanThreadState.hpp	2019-02-15 14:22:00.353083517 +0100
@@ -127,9 +127,8 @@
   G1EvacuationRootClosures* closures() { return _closures; }
   uint worker_id() { return _worker_id; }
 
-  // Returns the current amount of waste due to alignment or not being able to fit
-  // objects within LABs and the undo waste.
-  virtual void waste(size_t& wasted, size_t& undo_wasted);
+  size_t lab_waste() const;
+  size_t lab_undo_waste() const;
 
   size_t* surviving_young_words() {
     // We add one to hide entry 0 which accumulates surviving words for