--- a/src/hotspot/share/oops/klass.hpp	Mon Oct 29 08:38:59 2018 -0400
+++ b/src/hotspot/share/oops/klass.hpp	Mon Oct 29 10:21:34 2018 -0400
@@ -284,8 +284,9 @@
   // Use InstanceKlass::contains_field_offset to classify field offsets.
 
   // sub/superklass links
-  Klass* subklass() const              { return _subklass; }
-  Klass* next_sibling() const          { return _next_sibling; }
+  Klass* subklass(bool log = false) const;
+  Klass* next_sibling(bool log = false) const;
+
   InstanceKlass* superklass() const;
   void append_to_sibling_list();           // add newly created receiver to superklass' subklass list