diff -r ab967988f850 -r 8e56de95ce10 src/hotspot/share/runtime/vm_operations.hpp
--- a/src/hotspot/share/runtime/vm_operations.hpp	Thu Jun 07 11:20:55 2018 +0200
+++ b/src/hotspot/share/runtime/vm_operations.hpp	Thu Jun 07 12:23:46 2018 +0200
@@ -103,6 +103,7 @@
   template(RotateGCLog)                           \
   template(WhiteBoxOperation)                     \
   template(ClassLoaderStatsOperation)             \
+  template(ClassLoaderHierarchyOperation)         \
   template(DumpHashtable)                         \
   template(DumpTouchedMethods)                    \
   template(MarkActiveNMethods)                    \