diff -r 25048be67f4a -r 187c84a5efe1 src/hotspot/share/oops/klass.cpp
--- a/src/hotspot/share/oops/klass.cpp	Wed Aug 22 16:06:51 2018 +0100
+++ b/src/hotspot/share/oops/klass.cpp	Tue Aug 14 09:59:37 2018 -0700
@@ -571,6 +571,11 @@
   return CompressedOops::decode(_archived_mirror);
 }
 
+narrowOop Klass::archived_java_mirror_raw_narrow() {
+  assert(has_raw_archived_mirror(), "must have raw archived mirror");
+  return _archived_mirror;
+}
+
 // No GC barrier
 void Klass::set_archived_java_mirror_raw(oop m) {
   assert(DumpSharedSpaces, "called only during runtime");