--- old/src/hotspot/share/gc/cms/cmsHeap.hpp	2018-04-05 22:38:29.006121627 +0200
+++ new/src/hotspot/share/gc/cms/cmsHeap.hpp	2018-04-05 22:38:28.798121635 +0200
@@ -51,6 +51,7 @@
 
   // Returns JNI_OK on success
   virtual jint initialize();
+  virtual CardTableRS* create_rem_set(const MemRegion& reserved_region);
 
   // Convenience function to be used in situations where the heap type can be
   // asserted to be this type.