diff -r ab967988f850 -r 8e56de95ce10 src/hotspot/share/services/diagnosticCommand.cpp
--- a/src/hotspot/share/services/diagnosticCommand.cpp	Thu Jun 07 11:20:55 2018 +0200
+++ b/src/hotspot/share/services/diagnosticCommand.cpp	Thu Jun 07 12:23:46 2018 +0200
@@ -24,6 +24,7 @@
 
 #include "precompiled.hpp"
 #include "jvm.h"
+#include "classfile/classLoaderHierarchyDCmd.hpp"
 #include "classfile/classLoaderStats.hpp"
 #include "classfile/compactHashtable.hpp"
 #include "compiler/compileBroker.hpp"
@@ -101,6 +102,7 @@
 #endif // INCLUDE_JVMTI
   DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(full_export, true, false));
   DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderStatsDCmd>(full_export, true, false));
+  DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderHierarchyDCmd>(full_export, true, false));
   DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompileQueueDCmd>(full_export, true, false));
   DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeListDCmd>(full_export, true, false));
   DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeCacheDCmd>(full_export, true, false));