--- a/src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSetUtils.hpp	Thu Oct 24 16:28:51 2019 +0200
+++ b/src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeSetUtils.hpp	Thu Oct 24 16:37:22 2019 +0200
@@ -222,6 +222,8 @@
   CStringTable* _cstring_table;
   const SymbolEntry* _sym_list;
   const CStringEntry* _cstring_list;
+  const Symbol* _sym_query;
+  const char* _cstring_query;
   traceid _symbol_id_counter;
   bool _class_unload;
 
@@ -300,9 +302,7 @@
   ~JfrArtifactSet();
 
   // caller needs ResourceMark
-  void initialize(bool class_unload);
-  void clear();
-
+  void initialize(bool class_unload, bool clear = false);
 
   traceid mark(uintptr_t hash, const Symbol* sym, bool leakp);
   traceid mark(const Klass* klass, bool leakp);