diff -r 9c150f2b1fea -r 123705b84980 src/hotspot/share/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp
--- a/src/hotspot/share/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp	Thu Aug 29 12:53:05 2019 +0200
+++ b/src/hotspot/share/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp	Thu Aug 29 13:08:13 2019 +0200
@@ -41,8 +41,6 @@
   friend class ObjectSampleCheckpoint;
   friend class ObjectSampler;
   friend class StackTraceResolver;
-  friend class StackTraceWrite;
-  friend class WriteStackTraceRepository;
 
  private:
   static const u4 TABLE_SIZE = 2053;