--- a/src/hotspot/share/runtime/compilationPolicy.cpp	Tue Feb 06 18:10:30 2018 -0500
+++ b/src/hotspot/share/runtime/compilationPolicy.cpp	Tue Feb 06 08:24:36 2018 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -23,6 +23,7 @@
  */
 
 #include "precompiled.hpp"
+#include "classfile/classLoaderData.inline.hpp"
 #include "code/compiledIC.hpp"
 #include "code/nmethod.hpp"
 #include "code/scopeDesc.hpp"
@@ -312,7 +313,7 @@
   // and hence GC's will not be going on, all Java mutators are suspended
   // at this point and hence SystemDictionary_lock is also not needed.
   assert(SafepointSynchronize::is_at_safepoint(), "can only be executed at a safepoint");
-  int nclasses = InstanceKlass::number_of_instance_classes();
+  int nclasses = ClassLoaderDataGraph::num_instance_classes();
   int classes_per_tick = nclasses * (CounterDecayMinIntervalLength * 1e-3 /
                                         CounterHalfLifeTime);
   for (int i = 0; i < classes_per_tick; i++) {