--- a/hotspot/src/share/vm/gc_implementation/g1/g1Allocator.cpp	Thu Dec 18 13:26:37 2014 -0500
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1Allocator.cpp	Tue Dec 23 15:48:32 2014 +0100
@@ -99,8 +99,8 @@
   }
 
   if (ResizePLAB) {
-    _g1h->_survivor_plab_stats.adjust_desired_plab_sz(no_of_gc_workers);
-    _g1h->_old_plab_stats.adjust_desired_plab_sz(no_of_gc_workers);
+    _g1h->alloc_buffer_stats(InCSetState::Young)->adjust_desired_plab_sz(no_of_gc_workers);
+    _g1h->alloc_buffer_stats(InCSetState::Old)->adjust_desired_plab_sz(no_of_gc_workers);
   }
 }
 

--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Thu Dec 18 13:26:37 2014 -0500
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp	Tue Dec 23 15:48:32 2014 +0100
@@ -186,32 +186,14 @@
   friend class SurvivorGCAllocRegion;
   friend class OldGCAllocRegion;
   friend class G1Allocator;
-  friend class G1DefaultAllocator;
-  friend class G1ResManAllocator;
 
   // Closures used in implementation.
-  template <G1Barrier barrier, G1Mark do_mark_object>
-  friend class G1ParCopyClosure;
-  friend class G1IsAliveClosure;
-  friend class G1EvacuateFollowersClosure;
   friend class G1ParScanThreadState;
-  friend class G1ParScanClosureSuper;
-  friend class G1ParEvacuateFollowersClosure;
   friend class G1ParTask;
   friend class G1ParGCAllocator;
-  friend class G1DefaultParGCAllocator;
-  friend class G1FreeGarbageRegionClosure;
-  friend class RefineCardTableEntryClosure;
   friend class G1PrepareCompactClosure;
-  friend class RegionSorter;
-  friend class RegionResetter;
-  friend class CountRCClosure;
-  friend class EvacPopObjClosure;
-  friend class G1ParCleanupCTTask;
 
-  friend class G1FreeHumongousRegionClosure;
   // Other related classes.
-  friend class G1MarkSweep;
   friend class HeapRegionClaimer;
 
   // Testing classes.