diff -r a390cbb82d47 -r 85789fb05154 src/hotspot/share/oops/instanceKlass.hpp
--- a/src/hotspot/share/oops/instanceKlass.hpp	Mon Jun 25 02:07:42 2018 +0200
+++ b/src/hotspot/share/oops/instanceKlass.hpp	Sun Jun 24 21:46:11 2018 -0700
@@ -687,11 +687,6 @@
     return is_anonymous() ? java_mirror() : class_loader();
   }
 
-  // Load the klass's holder as a phantom. This is useful when a weak Klass
-  // pointer has been "peeked" and then must be kept alive before it may
-  // be used safely.
-  oop holder_phantom() const;
-
   bool is_contended() const                {
     return (_misc_flags & _misc_is_contended) != 0;
   }