diff -r 84ef29ccac56 -r 00860d9caf4d src/hotspot/share/jfr/support/jfrThreadLocal.hpp
--- a/src/hotspot/share/jfr/support/jfrThreadLocal.hpp	Fri Aug 23 18:47:55 2019 +0200
+++ b/src/hotspot/share/jfr/support/jfrThreadLocal.hpp	Sat Aug 24 14:30:27 2019 +0200
@@ -114,9 +114,7 @@
     _stackframes = frames;
   }
 
-  u4 stackdepth() const {
-    return _stackdepth;
-  }
+  u4 stackdepth() const;
 
   void set_stackdepth(u4 depth) {
     _stackdepth = depth;