--- a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp	Tue Feb 19 09:02:28 2019 +0100
+++ b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp	Wed Feb 20 09:53:28 2019 +0100
@@ -43,6 +43,7 @@
 #include "memory/allocation.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "oops/array.hpp"
+#include "oops/constantPool.hpp"
 #include "oops/instanceKlass.hpp"
 #include "oops/method.hpp"
 #include "prims/jvmtiRedefineClasses.hpp"