diff -r 964186594f5f -r e0603b4537c3 src/hotspot/share/classfile/systemDictionary.hpp
--- a/src/hotspot/share/classfile/systemDictionary.hpp	Mon Apr 01 10:02:07 2019 +0200
+++ b/src/hotspot/share/classfile/systemDictionary.hpp	Mon Apr 01 10:04:22 2019 +0200
@@ -30,6 +30,7 @@
 #include "oops/objArrayOop.hpp"
 #include "oops/symbol.hpp"
 #include "runtime/java.hpp"
+#include "runtime/mutexLocker.hpp"
 #include "runtime/reflectionUtils.hpp"
 #include "runtime/signature.hpp"
 #include "utilities/hashtable.hpp"