1164   // Accessors for code generation:
1165   static int rtype_offset_in_bytes()            { return _rtype_offset; }
1166   static int ptypes_offset_in_bytes()           { return _ptypes_offset; }
1167 };
1168 
1169 
1170 // Interface to java.lang.invoke.CallSite objects
1171 
1172 class java_lang_invoke_CallSite: AllStatic {
1173   friend class JavaClasses;
1174 
1175 private:
1176   static int _target_offset;
1177 
1178   static void compute_offsets();
1179 
1180 public:
1181   // Accessors
1182   static oop              target(         oop site);
1183   static void         set_target(         oop site, oop target);
1184 
1185   static volatile oop     target_volatile(oop site);
1186   static void         set_target_volatile(oop site, oop target);
1187 
1188   // Testers
1189   static bool is_subclass(Klass* klass) {
1190     return klass->is_subclass_of(SystemDictionary::CallSite_klass());
1191   }
1192   static bool is_instance(oop obj);
1193 
1194   // Accessors for code generation:
1195   static int target_offset_in_bytes()           { return _target_offset; }
1196 };
1197 
1198 
1199 // Interface to java.security.AccessControlContext objects
1200 
1201 class java_security_AccessControlContext: AllStatic {
1202  private:
1203   // Note that for this class the layout changed between JDK1.2 and JDK1.3,
1204   // so we compute the offsets at startup rather than hard-wiring them.
1205   static int _context_offset;

1164   // Accessors for code generation:
1165   static int rtype_offset_in_bytes()            { return _rtype_offset; }
1166   static int ptypes_offset_in_bytes()           { return _ptypes_offset; }
1167 };
1168 
1169 
1170 // Interface to java.lang.invoke.CallSite objects
1171 
1172 class java_lang_invoke_CallSite: AllStatic {
1173   friend class JavaClasses;
1174 
1175 private:
1176   static int _target_offset;
1177 
1178   static void compute_offsets();
1179 
1180 public:
1181   // Accessors
1182   static oop              target(         oop site);
1183   static void         set_target(         oop site, oop target);


1184   static void         set_target_volatile(oop site, oop target);
1185 
1186   // Testers
1187   static bool is_subclass(Klass* klass) {
1188     return klass->is_subclass_of(SystemDictionary::CallSite_klass());
1189   }
1190   static bool is_instance(oop obj);
1191 
1192   // Accessors for code generation:
1193   static int target_offset_in_bytes()           { return _target_offset; }
1194 };
1195 
1196 
1197 // Interface to java.security.AccessControlContext objects
1198 
1199 class java_security_AccessControlContext: AllStatic {
1200  private:
1201   // Note that for this class the layout changed between JDK1.2 and JDK1.3,
1202   // so we compute the offsets at startup rather than hard-wiring them.
1203   static int _context_offset;