--- old/src/hotspot/share/gc/z/zUtils.hpp	2018-09-18 21:52:11.467278943 +0200
+++ new/src/hotspot/share/gc/z/zUtils.hpp	2018-09-18 21:52:11.165265919 +0200
@@ -42,9 +42,6 @@
   // Object
   static size_t object_size(uintptr_t addr);
   static void object_copy(uintptr_t from, uintptr_t to, size_t size);
-
-  // Filler
-  static void insert_filler_object(uintptr_t addr, size_t size);
 };
 
 #endif // SHARE_GC_Z_ZUTILS_HPP