--- a/src/hotspot/share/gc/shared/collectedHeap.inline.hpp	Mon Apr 09 08:19:26 2018 -0400
+++ b/src/hotspot/share/gc/shared/collectedHeap.inline.hpp	Thu Apr 05 10:54:53 2018 +0200
@@ -61,10 +61,10 @@
 
   assert(obj != NULL, "NULL object pointer");
   if (UseBiasedLocking && (klass != NULL)) {
-    obj->set_mark(klass->prototype_header());
+    obj->set_mark_raw(klass->prototype_header());
   } else {
     // May be bootstrapping
-    obj->set_mark(markOopDesc::prototype());
+    obj->set_mark_raw(markOopDesc::prototype());
   }
 }