--- old/src/share/vm/gc/shared/space.hpp	2016-01-13 23:35:27.290921000 +0100
+++ new/src/share/vm/gc/shared/space.hpp	2016-01-13 23:35:27.121857000 +0100
@@ -360,9 +360,7 @@
     return size;
   }
 
-  inline size_t obj_size(const HeapWord* addr) const {
-    return oop(addr)->size();
-  }
+  inline size_t obj_size(const HeapWord* addr) const;
 
 public:
   CompactibleSpace() :
@@ -508,9 +506,7 @@
     return true; // Always true, since scan_limit is top
   }
 
-  inline size_t scanned_block_size(const HeapWord* addr) const {
-    return oop(addr)->size();
-  }
+  inline size_t scanned_block_size(const HeapWord* addr) const;
 
  protected:
   HeapWord* _top;