diff -r fa378e035b81 -r 7c3891b9f1e0 src/hotspot/share/classfile/javaClasses.cpp
--- a/src/hotspot/share/classfile/javaClasses.cpp	Fri Aug 24 09:38:11 2018 +0200
+++ b/src/hotspot/share/classfile/javaClasses.cpp	Fri Jul 06 16:04:19 2018 +0200
@@ -1271,6 +1271,13 @@
   return size;
 }
 
+int  java_lang_Class::oop_size_raw(oop java_class) {
+  assert(_oop_size_offset != 0, "must be set");
+  int size = java_class->int_field_raw(_oop_size_offset);
+  assert(size > 0, "Oop size must be greater than zero, not %d", size);
+  return size;
+}
+
 void java_lang_Class::set_oop_size(HeapWord* java_class, int size) {
   assert(_oop_size_offset != 0, "must be set");
   assert(size > 0, "Oop size must be greater than zero, not %d", size);
@@ -1281,6 +1288,12 @@
   assert(_static_oop_field_count_offset != 0, "must be set");
   return java_class->int_field(_static_oop_field_count_offset);
 }
+
+int  java_lang_Class::static_oop_field_count_raw(oop java_class) {
+  assert(_static_oop_field_count_offset != 0, "must be set");
+  return java_class->int_field_raw(_static_oop_field_count_offset);
+}
+
 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) {
   assert(_static_oop_field_count_offset != 0, "must be set");
   java_class->int_field_put(_static_oop_field_count_offset, size);
@@ -1370,6 +1383,14 @@
   return k;
 }
 
+Klass* java_lang_Class::as_Klass_raw(oop java_class) {
+  //%note memory_2
+  assert(java_lang_Class::is_instance(java_class), "must be a Class object");
+  Klass* k = ((Klass*)java_class->metadata_field_raw(_klass_offset));
+  assert(k == NULL || k->is_klass(), "type check");
+  return k;
+}
+
 
 void java_lang_Class::set_klass(oop java_class, Klass* klass) {
   assert(java_lang_Class::is_instance(java_class), "must be a Class object");
@@ -4007,6 +4028,11 @@
   return HeapAccess<>::load_at(loader, _loader_data_offset);
 }
 
+ClassLoaderData* java_lang_ClassLoader::loader_data_raw(oop loader) {
+  assert(loader != NULL && oopDesc::is_oop(loader), "loader must be oop");
+  return RawAccess<>::load_at(loader, _loader_data_offset);
+}
+
 ClassLoaderData* java_lang_ClassLoader::cmpxchg_loader_data(ClassLoaderData* new_data, oop loader, ClassLoaderData* expected_data) {
   assert(loader != NULL && oopDesc::is_oop(loader), "loader must be oop");
   return HeapAccess<>::atomic_cmpxchg_at(new_data, loader, _loader_data_offset, expected_data);