272 }
273 
274 inline bool java_lang_invoke_ResolvedMethodName::is_instance(oop obj) {
275   return obj != nullptr && obj->klass() == vmClasses::ResolvedMethodName_klass();
276 }
277 
278 inline bool java_lang_invoke_MethodType::is_instance(oop obj) {
279   return obj != nullptr && obj->klass() == vmClasses::MethodType_klass();
280 }
281 
282 inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) {
283   return obj != nullptr && is_subclass(obj->klass());
284 }
285 
286 inline bool java_lang_Class::is_instance(oop obj) {
287   return obj != nullptr && obj->klass() == vmClasses::Class_klass();
288 }
289 
290 inline Klass* java_lang_Class::as_Klass(oop java_class) {
291   //%note memory_2
292   assert(java_lang_Class::is_instance(java_class), "must be a Class object");
293   Klass* k = ((Klass*)java_class->metadata_field(_klass_offset));
294   assert(k == nullptr || k->is_klass(), "type check");
295   return k;
296 }
297 
298 inline bool java_lang_Class::is_primitive(oop java_class) {
299   // should assert:
300   //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
301   bool is_primitive = (java_class->metadata_field(_klass_offset) == nullptr);
302 
303 #ifdef ASSERT
304   if (is_primitive) {
305     Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
306     assert(k == nullptr || is_java_primitive(ArrayKlass::cast(k)->element_type()),
307         "Should be either the T_VOID primitive or a java primitive");
308   }
309 #endif
310 
311   return is_primitive;
312 }

272 }
273 
274 inline bool java_lang_invoke_ResolvedMethodName::is_instance(oop obj) {
275   return obj != nullptr && obj->klass() == vmClasses::ResolvedMethodName_klass();
276 }
277 
278 inline bool java_lang_invoke_MethodType::is_instance(oop obj) {
279   return obj != nullptr && obj->klass() == vmClasses::MethodType_klass();
280 }
281 
282 inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) {
283   return obj != nullptr && is_subclass(obj->klass());
284 }
285 
286 inline bool java_lang_Class::is_instance(oop obj) {
287   return obj != nullptr && obj->klass() == vmClasses::Class_klass();
288 }
289 
290 inline Klass* java_lang_Class::as_Klass(oop java_class) {
291   //%note memory_2
292   //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
293   Klass* k = ((Klass*)java_class->metadata_field(_klass_offset));
294   assert(k == nullptr || k->is_klass(), "type check");
295   return k;
296 }
297 
298 inline bool java_lang_Class::is_primitive(oop java_class) {
299   // should assert:
300   //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
301   bool is_primitive = (java_class->metadata_field(_klass_offset) == nullptr);
302 
303 #ifdef ASSERT
304   if (is_primitive) {
305     Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
306     assert(k == nullptr || is_java_primitive(ArrayKlass::cast(k)->element_type()),
307         "Should be either the T_VOID primitive or a java primitive");
308   }
309 #endif
310 
311   return is_primitive;
312 }