--- a/src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSet.hpp	Sat Sep 21 12:31:40 2019 +0200
+++ b/src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSet.hpp	Sat Sep 21 12:33:26 2019 +0200
@@ -31,6 +31,7 @@
 
 class JfrTypeSet : AllStatic {
  public:
+  static void clear();
   static size_t serialize(JfrCheckpointWriter* writer, JfrCheckpointWriter* leakp_writer, bool class_unload, bool flushpoint);
 };