--- old/src/share/vm/gc/shared/space.inline.hpp	2016-01-13 23:35:28.298964000 +0100
+++ new/src/share/vm/gc/shared/space.inline.hpp	2016-01-13 23:35:28.131979000 +0100
@@ -72,6 +72,10 @@
   return _offsets.block_start(p);
 }
 
+size_t CompactibleSpace::obj_size(const HeapWord* addr) const {
+  return oop(addr)->size();
+}
+
 template <class SpaceType>
 inline void CompactibleSpace::scan_and_forward(SpaceType* space, CompactPoint* cp) {
   // Compute the new addresses for the live objects and store it in the mark
@@ -331,4 +335,9 @@
     if (ZapUnusedHeapArea) space->mangle_unused_area();
   }
 }
+
+size_t ContiguousSpace::scanned_block_size(const HeapWord* addr) const {
+  return oop(addr)->size();
+}
+
 #endif // SHARE_VM_GC_SHARED_SPACE_INLINE_HPP