--- old/src/share/vm/memory/genCollectedHeap.hpp	2015-03-30 23:01:01.000000000 +0200
+++ new/src/share/vm/memory/genCollectedHeap.hpp	2015-03-30 23:01:00.000000000 +0200
@@ -51,10 +51,6 @@
   friend class GCCauseSetter;
   friend class VMStructs;
 public:
-  enum SomeConstants {
-    max_gens = 10
-  };
-
   friend class VM_PopulateDumpSharedSpace;
 
  protected:
@@ -62,8 +58,6 @@
   static GenCollectedHeap* _gch;
 
  private:
-  int _n_gens;
-
   Generation* _young_gen;
   Generation* _old_gen;
 
@@ -370,11 +364,6 @@
   // collection.
   virtual bool is_maximal_no_gc() const;
 
-  int n_gens() const {
-    assert(_n_gens == gen_policy()->number_of_generations(), "Sanity");
-    return _n_gens;
-  }
-
   // This function returns the "GenRemSet" object that allows us to scan
   // generations in a fully generational heap.
   GenRemSet* rem_set() { return _rem_set; }