diff -r 59272e9e0635 -r 1152339c298a src/hotspot/share/gc/shared/collectedHeap.hpp
--- a/src/hotspot/share/gc/shared/collectedHeap.hpp	Wed Nov 20 10:37:46 2019 +0100
+++ b/src/hotspot/share/gc/shared/collectedHeap.hpp	Wed Nov 20 10:37:46 2019 +0100
@@ -387,10 +387,6 @@
   // Iterate over all objects, calling "cl.do_object" on each.
   virtual void object_iterate(ObjectClosure* cl) = 0;
 
-  // Similar to object_iterate() except iterates only
-  // over live objects.
-  virtual void safe_object_iterate(ObjectClosure* cl) = 0;
-
   // Returns the longest time (in ms) that has elapsed since the last
   // time that any part of the heap was examined by a garbage collection.
   virtual jlong millis_since_last_gc() = 0;