src/hotspot/share/oops/instanceKlass.hpp

*** 255,265 ****
   public:
    enum {
      _extra_is_being_redefined   = 1 << 0, // used for locking redefinition
      _extra_has_resolved_methods = 1 << 1, // resolved methods table entries added for this class
      _extra_has_value_fields     = 1 << 2, // has value fields and related embedded section is not empty
!     _extra_is_bufferable        = 1 << 3  // value can be buffered out side of the Java heap
    };
  
   protected:
    u1              _extra_flags;
  
--- 255,266 ----
   public:
    enum {
      _extra_is_being_redefined   = 1 << 0, // used for locking redefinition
      _extra_has_resolved_methods = 1 << 1, // resolved methods table entries added for this class
      _extra_has_value_fields     = 1 << 2, // has value fields and related embedded section is not empty
!     _extra_is_bufferable        = 1 << 3, // value can be buffered out side of the Java heap
!     _extra_is_empty_value       = 1 << 4  // empty value type
    };
  
   protected:
    u1              _extra_flags;
  
*** 422,431 ****
--- 423,439 ----
    }
    void set_has_value_fields()  {
      _extra_flags |= _extra_has_value_fields;
    }
  
+   bool is_empty_value() const {
+     return (_extra_flags & _extra_is_empty_value) != 0;
+   }
+   void set_is_empty_value() {
+     _extra_flags |= _extra_is_empty_value;
+   }
+ 
    // field sizes
    int nonstatic_field_size() const         { return _nonstatic_field_size; }
    void set_nonstatic_field_size(int size)  { _nonstatic_field_size = size; }
  
    int static_field_size() const            { return _static_field_size; }