--- a/src/hotspot/share/prims/whitebox.cpp	Fri Mar 02 10:09:04 2018 +0100
+++ b/src/hotspot/share/prims/whitebox.cpp	Fri Mar 02 10:09:05 2018 +0100
@@ -2162,7 +2162,6 @@
       Handle loader(THREAD, ik->class_loader());
       if (loader.is_null()) {
         WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0]));
-        WhiteBox::register_extended(env, wbclass, thread);
         WhiteBox::set_used();
       }
     }