14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP
  26 #define SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP
  27 
  28 #include "oops/arrayOop.hpp"
  29 #include "oops/cpCache.hpp"
  30 #include "oops/objArrayOop.hpp"
  31 #include "oops/symbol.hpp"
  32 #include "oops/typeArrayOop.hpp"
  33 #include "runtime/handles.hpp"

  34 #include "utilities/bytes.hpp"
  35 #include "utilities/constantTag.hpp"
  36 
  37 // A ConstantPool is an array containing class constants as described in the
  38 // class file.
  39 //
  40 // Most of the constant pool entries are written during class parsing, which
  41 // is safe.  For klass types, the constant pool entry is
  42 // modified when the entry is resolved.  If a klass constant pool
  43 // entry is read without a lock, only the resolved state guarantees that
  44 // the entry in the constant pool is a klass object and not a Symbol*.
  45 
  46 class SymbolHashMap;
  47 
  48 class CPSlot VALUE_OBJ_CLASS_SPEC {
  49  friend class ConstantPool;
  50   intptr_t _ptr;
  51   enum TagBits  {_pseudo_bit = 1};
  52  public:
  53 

  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP
  26 #define SHARE_VM_OOPS_CONSTANTPOOLOOP_HPP
  27 
  28 #include "oops/arrayOop.hpp"
  29 #include "oops/cpCache.hpp"
  30 #include "oops/objArrayOop.hpp"
  31 #include "oops/symbol.hpp"
  32 #include "oops/typeArrayOop.hpp"
  33 #include "runtime/handles.hpp"
  34 #include "utilities/align.hpp"
  35 #include "utilities/bytes.hpp"
  36 #include "utilities/constantTag.hpp"
  37 
  38 // A ConstantPool is an array containing class constants as described in the
  39 // class file.
  40 //
  41 // Most of the constant pool entries are written during class parsing, which
  42 // is safe.  For klass types, the constant pool entry is
  43 // modified when the entry is resolved.  If a klass constant pool
  44 // entry is read without a lock, only the resolved state guarantees that
  45 // the entry in the constant pool is a klass object and not a Symbol*.
  46 
  47 class SymbolHashMap;
  48 
  49 class CPSlot VALUE_OBJ_CLASS_SPEC {
  50  friend class ConstantPool;
  51   intptr_t _ptr;
  52   enum TagBits  {_pseudo_bit = 1};
  53  public:
  54