diff -r 1258121876f8 -r 8e875c964f41 src/share/vm/jfr/leakprofiler/chains/edge.hpp
--- a/src/share/vm/jfr/leakprofiler/chains/edge.hpp	Fri Sep 27 13:23:32 2019 +0800
+++ b/src/share/vm/jfr/leakprofiler/chains/edge.hpp	Wed Oct 09 16:11:58 2019 +0800
@@ -29,7 +29,7 @@
 #include "oops/oopsHierarchy.hpp"
 
 class Edge {
- private:
+ protected:
   const Edge* _parent;
   const oop* _reference;
  public: