--- old/src/hotspot/share/gc/shared/space.cpp	2018-06-20 11:50:24.432139529 +0200
+++ new/src/hotspot/share/gc/shared/space.cpp	2018-06-20 11:50:24.208139537 +0200
@@ -32,6 +32,7 @@
 #include "gc/shared/space.hpp"
 #include "gc/shared/space.inline.hpp"
 #include "gc/shared/spaceDecorator.hpp"
+#include "memory/iterator.inline.hpp"
 #include "memory/universe.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/atomic.hpp"
@@ -181,7 +182,7 @@
   }
 }
 
-DirtyCardToOopClosure* Space::new_dcto_cl(ExtendedOopClosure* cl,
+DirtyCardToOopClosure* Space::new_dcto_cl(OopIterateClosure* cl,
                                           CardTable::PrecisionStyle precision,
                                           HeapWord* boundary,
                                           bool parallel) {
@@ -257,11 +258,11 @@
 // (There are only two of these, rather than N, because the split is due
 // only to the introduction of the FilteringClosure, a local part of the
 // impl of this abstraction.)
-ContiguousSpaceDCTOC__walk_mem_region_with_cl_DEFN(ExtendedOopClosure)
+ContiguousSpaceDCTOC__walk_mem_region_with_cl_DEFN(OopIterateClosure)
 ContiguousSpaceDCTOC__walk_mem_region_with_cl_DEFN(FilteringClosure)
 
 DirtyCardToOopClosure*
-ContiguousSpace::new_dcto_cl(ExtendedOopClosure* cl,
+ContiguousSpace::new_dcto_cl(OopIterateClosure* cl,
                              CardTable::PrecisionStyle precision,
                              HeapWord* boundary,
                              bool parallel) {
@@ -480,7 +481,7 @@
   }
 }
 
-void Space::oop_iterate(ExtendedOopClosure* blk) {
+void Space::oop_iterate(OopIterateClosure* blk) {
   ObjectToOopClosure blk2(blk);
   object_iterate(&blk2);
 }
@@ -490,7 +491,7 @@
   return true;
 }
 
-void ContiguousSpace::oop_iterate(ExtendedOopClosure* blk) {
+void ContiguousSpace::oop_iterate(OopIterateClosure* blk) {
   if (is_empty()) return;
   HeapWord* obj_addr = bottom();
   HeapWord* t = top();