--- old/src/share/vm/gc/g1/g1CollectedHeap.hpp	2015-11-05 13:45:01.826430978 +0100
+++ new/src/share/vm/gc/g1/g1CollectedHeap.hpp	2015-11-05 13:45:01.734430522 +0100
@@ -1242,8 +1242,9 @@
   // Return the region with the given index. It assumes the index is valid.
   inline HeapRegion* region_at(uint index) const;
 
-  // Return the next region (by index) if that region is also humongous, NULL otherwise.
-  inline HeapRegion* next_humongous_region(HeapRegion* hr) const;
+  // Return the next region (by index) that is part of the same
+  // humongous object that hr is part of.
+  inline HeapRegion* next_region_in_humongous(HeapRegion* hr) const;
 
   // Calculate the region index of the given address. Given address must be
   // within the heap.