--- old/src/hotspot/share/gc/shared/generationSpec.hpp	2018-02-20 23:17:53.893068247 +0100
+++ new/src/hotspot/share/gc/shared/generationSpec.hpp	2018-02-20 23:17:53.669060590 +0100
@@ -37,12 +37,14 @@
 private:
   Generation::Name _name;
   size_t           _init_size;
+  size_t           _min_size;
   size_t           _max_size;
 
 public:
-  GenerationSpec(Generation::Name name, size_t init_size, size_t max_size, size_t alignment) :
+  GenerationSpec(Generation::Name name, size_t init_size, size_t min_size, size_t max_size, size_t alignment) :
     _name(name),
     _init_size(align_up(init_size, alignment)),
+    _min_size(align_up(min_size, alignment)),
     _max_size(align_up(max_size, alignment))
   { }
 
@@ -51,9 +53,7 @@
   // Accessors
   Generation::Name name()        const { return _name; }
   size_t init_size()             const { return _init_size; }
-  void set_init_size(size_t size)      { _init_size = size; }
   size_t max_size()              const { return _max_size; }
-  void set_max_size(size_t size)       { _max_size = size; }
 };
 
 typedef GenerationSpec* GenerationSpecPtr;