--- a/src/share/vm/memory/metaspace.hpp	Fri Dec 21 10:27:49 2012 -0800
+++ b/src/share/vm/memory/metaspace.hpp	Mon Dec 03 15:09:39 2012 -0800
@@ -87,11 +87,23 @@
 
  public:
   enum MetadataType {ClassType, NonClassType};
+  enum MetaspaceType {
+    StandardMetaspaceType,
+    BootMetaspaceType,
+    ROMetaspaceType,
+    ReadWriteMetaspaceType,
+    AnonymousMetaspaceType,
+    ReflectionMetaspaceType
+  };
 
  private:
-  void initialize(Mutex* lock, size_t initial_size = 0);
+  void initialize(Mutex* lock, MetaspaceType type);
+
+  // Align up the word size to the allocation word size
+  static size_t align_word_size_up(size_t);
 
   static size_t _first_chunk_word_size;
+  static size_t _first_class_chunk_word_size;
 
   SpaceManager* _vsm;
   SpaceManager* vsm() const { return _vsm; }
@@ -110,8 +122,7 @@
 
  public:
 
-  Metaspace(Mutex* lock, size_t initial_size);
-  Metaspace(Mutex* lock);
+  Metaspace(Mutex* lock, MetaspaceType type);
   ~Metaspace();
 
   // Initialize globals for Metaspace
@@ -119,6 +130,7 @@
   static void initialize_class_space(ReservedSpace rs);
 
   static size_t first_chunk_word_size() { return _first_chunk_word_size; }
+  static size_t first_class_chunk_word_size() { return _first_class_chunk_word_size; }
 
   char*  bottom() const;
   size_t used_words(MetadataType mdtype) const;