1164   static int rtype_offset_in_bytes()            { return _rtype_offset; }
1165   static int ptypes_offset_in_bytes()           { return _ptypes_offset; }
1166 };
1167 
1168 
1169 // Interface to java.lang.invoke.CallSite objects
1170 
1171 class java_lang_invoke_CallSite: AllStatic {
1172   friend class JavaClasses;
1173 
1174 private:
1175   static int _target_offset;
1176 
1177   static void compute_offsets();
1178 
1179 public:
1180   // Accessors
1181   static oop              target(         oop site)             { return site->obj_field(             _target_offset);         }
1182   static void         set_target(         oop site, oop target) {        site->obj_field_put(         _target_offset, target); }
1183 
1184   static volatile oop     target_volatile(oop site)             { return site->obj_field_volatile(    _target_offset);         }
1185   static void         set_target_volatile(oop site, oop target) {        site->obj_field_put_volatile(_target_offset, target); }
1186 
1187   // Testers
1188   static bool is_subclass(Klass* klass) {
1189     return klass->is_subclass_of(SystemDictionary::CallSite_klass());
1190   }
1191   static bool is_instance(oop obj) {
1192     return obj != NULL && is_subclass(obj->klass());
1193   }
1194 
1195   // Accessors for code generation:
1196   static int target_offset_in_bytes()           { return _target_offset; }
1197 };
1198 
1199 
1200 // Interface to java.security.AccessControlContext objects
1201 
1202 class java_security_AccessControlContext: AllStatic {
1203  private:
1204   // Note that for this class the layout changed between JDK1.2 and JDK1.3,

1164   static int rtype_offset_in_bytes()            { return _rtype_offset; }
1165   static int ptypes_offset_in_bytes()           { return _ptypes_offset; }
1166 };
1167 
1168 
1169 // Interface to java.lang.invoke.CallSite objects
1170 
1171 class java_lang_invoke_CallSite: AllStatic {
1172   friend class JavaClasses;
1173 
1174 private:
1175   static int _target_offset;
1176 
1177   static void compute_offsets();
1178 
1179 public:
1180   // Accessors
1181   static oop              target(         oop site)             { return site->obj_field(             _target_offset);         }
1182   static void         set_target(         oop site, oop target) {        site->obj_field_put(         _target_offset, target); }
1183 
1184   static volatile oop     target_volatile(oop site)             { return oop((oopDesc *)(site->obj_field_volatile(_target_offset))); }
1185   static void         set_target_volatile(oop site, oop target) {        site->obj_field_put_volatile(_target_offset, target); }
1186 
1187   // Testers
1188   static bool is_subclass(Klass* klass) {
1189     return klass->is_subclass_of(SystemDictionary::CallSite_klass());
1190   }
1191   static bool is_instance(oop obj) {
1192     return obj != NULL && is_subclass(obj->klass());
1193   }
1194 
1195   // Accessors for code generation:
1196   static int target_offset_in_bytes()           { return _target_offset; }
1197 };
1198 
1199 
1200 // Interface to java.security.AccessControlContext objects
1201 
1202 class java_security_AccessControlContext: AllStatic {
1203  private:
1204   // Note that for this class the layout changed between JDK1.2 and JDK1.3,