src/hotspot/share/oops/objArrayKlass.hpp

*** 48,57 ****
--- 48,61 ----
    static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS);
   public:
    // For dummy objects
    ObjArrayKlass() {}
  
+   // if ObjArrayKlass is used to represent an LWorld "Q-type" value type array, the only thing we can give null-free (i.e. not flattened)
+   // ArrayStorageProperties::empty meaning nothing special, array of references (possibly even to value types)
+   ArrayStorageProperties storage_properties();
+ 
    Klass* bottom_klass() const       { return _bottom_klass; }
    void set_bottom_klass(Klass* k)   { _bottom_klass = k; }
    Klass** bottom_klass_addr()       { return &_bottom_klass; }
  
    ModuleEntry* module() const;
*** 63,73 ****
                                                    Array<InstanceKlass*>* transitive_interfaces);
    DEBUG_ONLY(bool is_objArray_klass_slow()  const  { return true; })
    int oop_size(oop obj) const;
  
    // Allocation
!   static Klass* allocate_objArray_klass(ClassLoaderData* loader_data,
                                            int n, Klass* element_klass, TRAPS);
  
    objArrayOop allocate(int length, TRAPS);
    oop multi_allocate(int rank, jint* sizes, TRAPS);
  
--- 67,77 ----
                                                    Array<InstanceKlass*>* transitive_interfaces);
    DEBUG_ONLY(bool is_objArray_klass_slow()  const  { return true; })
    int oop_size(oop obj) const;
  
    // Allocation
!   static Klass* allocate_objArray_klass(ArrayStorageProperties storage_props,
                                            int n, Klass* element_klass, TRAPS);
  
    objArrayOop allocate(int length, TRAPS);
    oop multi_allocate(int rank, jint* sizes, TRAPS);
  
*** 85,98 ****
    void do_copy(arrayOop s, size_t src_offset,
                 arrayOop d, size_t dst_offset,
                 int length, TRAPS);
   protected:
    // Returns the ObjArrayKlass for n'th dimension.
!   virtual Klass* array_klass_impl(bool or_null, int n, TRAPS);
  
    // Returns the array class with this class as element type.
!   virtual Klass* array_klass_impl(bool or_null, TRAPS);
  
   public:
  
    static ObjArrayKlass* cast(Klass* k) {
      return const_cast<ObjArrayKlass*>(cast(const_cast<const Klass*>(k)));
--- 89,102 ----
    void do_copy(arrayOop s, size_t src_offset,
                 arrayOop d, size_t dst_offset,
                 int length, TRAPS);
   protected:
    // Returns the ObjArrayKlass for n'th dimension.
!   virtual Klass* array_klass_impl(ArrayStorageProperties storage_props, bool or_null, int n, TRAPS);
  
    // Returns the array class with this class as element type.
!   virtual Klass* array_klass_impl(ArrayStorageProperties storage_props, bool or_null, TRAPS);
  
   public:
  
    static ObjArrayKlass* cast(Klass* k) {
      return const_cast<ObjArrayKlass*>(cast(const_cast<const Klass*>(k)));