--- old/src/share/vm/gc/g1/g1RootClosures.cpp	2015-10-13 14:01:36.159844973 +0200
+++ new/src/share/vm/gc/g1/g1RootClosures.cpp	2015-10-13 14:01:36.031839679 +0200
@@ -54,12 +54,14 @@
 
 class G1EvacuationClosures : public G1EvacuationRootClosures {
   G1SharedClosures<G1MarkNone> _closures;
+  G1ParPushHeapRSClosure       _inter_region_oops;
 
 public:
   G1EvacuationClosures(G1CollectedHeap* g1h,
                        G1ParScanThreadState* pss,
                        bool gcs_are_young) :
-      _closures(g1h, pss, gcs_are_young, /* must_claim_cld */ false) {}
+      _closures(g1h, pss, gcs_are_young, /* must_claim_cld */ false),
+      _inter_region_oops(g1h, pss) {}
 
   OopClosure* weak_oops()   { return &_closures._buffered_oops; }
   OopClosure* strong_oops() { return &_closures._buffered_oops; }
@@ -78,6 +80,8 @@
   OopClosure* raw_strong_oops() { return &_closures._oops; }
 
   bool trace_metadata()         { return false; }
+
+  G1ParPushHeapRSClosure* inter_region_oops() { return &_inter_region_oops; }
 };
 
 // Closures used during initial mark.
@@ -87,6 +91,7 @@
 class G1InitalMarkClosures : public G1EvacuationRootClosures {
   G1SharedClosures<G1MarkFromRoot> _strong;
   G1SharedClosures<MarkWeak>       _weak;
+  G1ParPushHeapRSClosure           _inter_region_oops;
 
   // Filter method to help with returning the appropriate closures
   // depending on the class template parameter.
@@ -102,7 +107,8 @@
   G1InitalMarkClosures(G1CollectedHeap* g1h,
                        G1ParScanThreadState* pss) :
       _strong(g1h, pss, /* process_only_dirty_klasses */ false, /* must_claim_cld */ true),
-      _weak(g1h, pss,   /* process_only_dirty_klasses */ false, /* must_claim_cld */ true) {}
+      _weak(g1h, pss,   /* process_only_dirty_klasses */ false, /* must_claim_cld */ true),
+      _inter_region_oops(g1h, pss) {}
 
   OopClosure* weak_oops()   { return &_weak._buffered_oops; }
   OopClosure* strong_oops() { return &_strong._buffered_oops; }
@@ -134,6 +140,8 @@
   // If we are not marking all weak roots then we are tracing
   // which metadata is alive.
   bool trace_metadata()         { return MarkWeak == G1MarkPromotedFromRoot; }
+
+  G1ParPushHeapRSClosure* inter_region_oops() { return &_inter_region_oops; }
 };
 
 G1EvacuationRootClosures* G1EvacuationRootClosures::create_root_closures(G1ParScanThreadState* pss, G1CollectedHeap* g1h) {