--- old/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp	2015-04-02 13:02:47.792246914 +0200
+++ new/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp	2015-04-02 13:02:47.672246919 +0200
@@ -34,6 +34,7 @@
 #include "gc_implementation/shared/gcWhen.hpp"
 #include "gc_interface/collectedHeap.inline.hpp"
 #include "memory/collectorPolicy.hpp"
+#include "memory/strongRootsScope.hpp"
 #include "utilities/ostream.hpp"
 
 class AdjoiningGenerations;
@@ -237,7 +238,7 @@
   void gen_mangle_unused_area() PRODUCT_RETURN;
 
   // Call these in sequential code around the processing of strong roots.
-  class ParStrongRootsScope : public MarkingCodeBlobClosure::MarkScope {
+  class ParStrongRootsScope : public MarkScope {
    public:
     ParStrongRootsScope();
     ~ParStrongRootsScope();