diff -r e47074d2d8cc -r c8208421a860 src/hotspot/share/classfile/javaClasses.cpp
--- a/src/hotspot/share/classfile/javaClasses.cpp	Fri Jan 18 14:43:25 2019 +0900
+++ b/src/hotspot/share/classfile/javaClasses.cpp	Fri Jan 18 08:00:05 2019 +0100
@@ -1257,12 +1257,6 @@
   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");