--- a/hotspot/src/share/vm/gc/g1/g1Allocator.cpp	Mon Nov 16 18:50:55 2015 -0500
+++ b/hotspot/src/share/vm/gc/g1/g1Allocator.cpp	Tue Nov 17 11:20:27 2015 +0100
@@ -33,6 +33,8 @@
 
 G1DefaultAllocator::G1DefaultAllocator(G1CollectedHeap* heap) :
   G1Allocator(heap),
+  _survivor_is_full(false),
+  _old_is_full(false),
   _retained_old_gc_alloc_region(NULL),
   _survivor_gc_alloc_region(heap->alloc_buffer_stats(InCSetState::Young)),
   _old_gc_alloc_region(heap->alloc_buffer_stats(InCSetState::Old)) {
@@ -87,7 +89,8 @@
 void G1DefaultAllocator::init_gc_alloc_regions(EvacuationInfo& evacuation_info) {
   assert_at_safepoint(true /* should_be_vm_thread */);
 
-  G1Allocator::init_gc_alloc_regions(evacuation_info);
+  _survivor_is_full = false;
+  _old_is_full = false;
 
   _survivor_gc_alloc_region.init();
   _old_gc_alloc_region.init();
@@ -118,6 +121,22 @@
   _retained_old_gc_alloc_region = NULL;
 }
 
+bool G1DefaultAllocator::survivor_is_full(AllocationContext_t context) const {
+  return _survivor_is_full;
+}
+
+bool G1DefaultAllocator::old_is_full(AllocationContext_t context) const {
+  return _old_is_full;
+}
+
+void G1DefaultAllocator::set_survivor_full(AllocationContext_t context) {
+  _survivor_is_full = true;
+}
+
+void G1DefaultAllocator::set_old_full(AllocationContext_t context) {
+  _old_is_full = true;
+}
+
 G1PLAB::G1PLAB(size_t gclab_word_size) :
   PLAB(gclab_word_size), _retired(true) { }
 
@@ -165,22 +184,6 @@
   }
 }
 
-bool G1Allocator::survivor_is_full(AllocationContext_t context) const {
-  return _survivor_is_full;
-}
-
-bool G1Allocator::old_is_full(AllocationContext_t context) const {
-  return _old_is_full;
-}
-
-void G1Allocator::set_survivor_full(AllocationContext_t context) {
-  _survivor_is_full = true;
-}
-
-void G1Allocator::set_old_full(AllocationContext_t context) {
-  _old_is_full = true;
-}
-
 HeapWord* G1Allocator::survivor_attempt_allocation(size_t min_word_size,
                                                    size_t desired_word_size,
                                                    size_t* actual_word_size,
@@ -232,11 +235,6 @@
   return result;
 }
 
-void G1Allocator::init_gc_alloc_regions(EvacuationInfo& evacuation_info) {
-  _survivor_is_full = false;
-  _old_is_full = false;
-}
-
 G1PLABAllocator::G1PLABAllocator(G1Allocator* allocator) :
   _g1h(G1CollectedHeap::heap()),
   _allocator(allocator),

--- a/hotspot/src/share/vm/gc/g1/g1Allocator.hpp	Mon Nov 16 18:50:55 2015 -0500
+++ b/hotspot/src/share/vm/gc/g1/g1Allocator.hpp	Tue Nov 17 11:20:27 2015 +0100
@@ -38,19 +38,16 @@
 // Also keeps track of retained regions across GCs.
 class G1Allocator : public CHeapObj<mtGC> {
   friend class VMStructs;
-private:
-  bool _survivor_is_full;
-  bool _old_is_full;
 protected:
   G1CollectedHeap* _g1h;
 
   virtual MutatorAllocRegion* mutator_alloc_region(AllocationContext_t context) = 0;
 
-  virtual bool survivor_is_full(AllocationContext_t context) const;
-  virtual bool old_is_full(AllocationContext_t context) const;
+  virtual bool survivor_is_full(AllocationContext_t context) const = 0;
+  virtual bool old_is_full(AllocationContext_t context) const = 0;
 
-  virtual void set_survivor_full(AllocationContext_t context);
-  virtual void set_old_full(AllocationContext_t context);
+  virtual void set_survivor_full(AllocationContext_t context) = 0;
+  virtual void set_old_full(AllocationContext_t context) = 0;
 
   // Accessors to the allocation regions.
   virtual SurvivorGCAllocRegion* survivor_gc_alloc_region(AllocationContext_t context) = 0;
@@ -67,7 +64,7 @@
                                           size_t* actual_word_size,
                                           AllocationContext_t context);
 public:
-  G1Allocator(G1CollectedHeap* heap) : _g1h(heap), _survivor_is_full(false), _old_is_full(false) { }
+  G1Allocator(G1CollectedHeap* heap) : _g1h(heap) { }
   virtual ~G1Allocator() { }
 
   static G1Allocator* create_allocator(G1CollectedHeap* g1h);
@@ -79,7 +76,7 @@
   virtual void init_mutator_alloc_region() = 0;
   virtual void release_mutator_alloc_region() = 0;
 
-  virtual void init_gc_alloc_regions(EvacuationInfo& evacuation_info);
+  virtual void init_gc_alloc_regions(EvacuationInfo& evacuation_info) = 0;
   virtual void release_gc_alloc_regions(EvacuationInfo& evacuation_info) = 0;
   virtual void abandon_gc_alloc_regions() = 0;
 
@@ -119,6 +116,9 @@
 // and old generation allocation region.
 // Can retain the (single) old generation allocation region across GCs.
 class G1DefaultAllocator : public G1Allocator {
+private:
+  bool _survivor_is_full;
+  bool _old_is_full;
 protected:
   // Alloc region used to satisfy mutator allocation requests.
   MutatorAllocRegion _mutator_alloc_region;
@@ -135,6 +135,12 @@
 public:
   G1DefaultAllocator(G1CollectedHeap* heap);
 
+  virtual bool survivor_is_full(AllocationContext_t context) const;
+  virtual bool old_is_full(AllocationContext_t context) const ;
+
+  virtual void set_survivor_full(AllocationContext_t context);
+  virtual void set_old_full(AllocationContext_t context);
+
   virtual void init_mutator_alloc_region();
   virtual void release_mutator_alloc_region();