--- old/src/hotspot/share/gc/shared/collectedHeap.hpp	2019-11-21 11:03:11.605007507 +0100
+++ new/src/hotspot/share/gc/shared/collectedHeap.hpp	2019-11-21 11:03:11.361003367 +0100
@@ -246,6 +246,7 @@
   GCCause::Cause gc_cause() { return _gc_cause; }
 
   oop obj_allocate(Klass* klass, int size, TRAPS);
+  oop obj_buffer_allocate(Klass* klass, int size, TRAPS); // doesn't clear memory
   virtual oop array_allocate(Klass* klass, int size, int length, bool do_zero, TRAPS);
   oop class_allocate(Klass* klass, int size, TRAPS);