--- old/src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp	2019-09-17 11:35:42.855897361 +0200
+++ new/src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp	2019-09-17 11:35:42.748897365 +0200
@@ -707,6 +707,7 @@
 
   static inline oop cas_oop(oop n, narrowOop* addr, oop c);
   static inline oop cas_oop(oop n, oop* addr, oop c);
+  static inline oop cas_oop(oop n, narrowOop* addr, narrowOop c);
 
   void trash_humongous_region_at(ShenandoahHeapRegion *r);