--- old/src/hotspot/share/oops/klass.hpp	2018-05-07 15:52:05.276401217 +0200
+++ new/src/hotspot/share/oops/klass.hpp	2018-05-07 15:52:04.948395659 +0200
@@ -162,7 +162,10 @@
   // Constructor
   Klass();
 
-  void* operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, TRAPS) throw();
+  void* operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, bool is_value, TRAPS) throw();
+  void* operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, TRAPS) throw() {
+   return operator new (size, loader_data, word_size, false, THREAD);
+  }
 
  public:
   enum DefaultsLookupMode { find_defaults, skip_defaults };
@@ -689,6 +692,9 @@
 
   static Klass* decode_klass_not_null(narrowKlass v);
   static Klass* decode_klass(narrowKlass v);
+
+  static bool decode_ptr_is_value_type(narrowKlass v);
+  static bool ptr_is_value_type(Klass* v);
 };
 
 // Helper to convert the oop iterate macro suffixes into bool values that can be used by template functions.