--- old/src/share/vm/gc/shared/generation.hpp	2015-09-09 13:49:15.000000000 +0200
+++ new/src/share/vm/gc/shared/generation.hpp	2015-09-09 13:49:15.000000000 +0200
@@ -143,7 +143,7 @@
   }
 
   virtual Generation::Name kind() { return Generation::Other; }
-  GenerationSpec* spec();
+  size_t initial_size();
 
   // This properly belongs in the collector, but for now this
   // will do.
@@ -311,10 +311,6 @@
   // do nothing.
   virtual void par_oop_since_save_marks_iterate_done(int thread_num) {}
 
-  // This generation will collect all younger generations
-  // during a full collection.
-  virtual bool full_collects_young_generation() const { return false; }
-
   // This generation does in-place marking, meaning that mark words
   // are mutated during the marking phase and presumably reinitialized
   // to a canonical value after the GC. This is currently used by the
@@ -405,7 +401,7 @@
   // that was most recently collected. This allows the generation to
   // decide what statistics are valid to collect. For example, the
   // generation can decide to gather the amount of promoted data if
-  // the collection of the younger generations has completed.
+  // the collection of the young generation has completed.
   GCStats* gc_stats() const { return _gc_stats; }
   virtual void update_gc_stats(Generation* current_generation, bool full) {}