--- old/src/hotspot/share/oops/oop.hpp	2019-08-20 10:52:15.228587011 +0200
+++ new/src/hotspot/share/oops/oop.hpp	2019-08-20 10:52:14.984583264 +0200
@@ -314,6 +314,7 @@
   inline void     set_displaced_mark_raw(markWord m);
 
   // Checks if the mark word needs to be preserved
+  inline bool mark_must_be_preserved() const;
   inline bool mark_must_be_preserved(markWord m) const;
   inline bool mark_must_be_preserved_for_promotion_failure(markWord m) const;