--- old/src/share/vm/gc_implementation/parallelScavenge/psScavenge.hpp	2019-02-15 19:02:29.115123955 +0300
+++ new/src/share/vm/gc_implementation/parallelScavenge/psScavenge.hpp	2019-02-15 19:02:28.947129830 +0300
@@ -92,6 +92,7 @@
 
   // Private accessors
   static CardTableExtension* const card_table()       { assert(_card_table != NULL, "Sanity"); return _card_table; }
+  static const ParallelScavengeTracer* gc_tracer() { return &_gc_tracer; }
 
  public:
   // Accessors