diff -r 935bf3340572 -r 018b357638aa src/share/vm/oops/methodData.hpp
--- a/src/share/vm/oops/methodData.hpp	Sat Nov 16 01:42:55 2013 +0100
+++ b/src/share/vm/oops/methodData.hpp	Tue Nov 19 11:53:58 2013 -0800
@@ -395,7 +395,7 @@
   }
 
   static oop oop_at(DataLayout* layout, int index) {
-    return (oop)layout->cell_at(index);
+    return cast_to_oop(layout->cell_at(index));
   }
 
   static void set_intptr_at(DataLayout* layout, int index, intptr_t value) {
@@ -1248,8 +1248,8 @@
   }
 
   static Klass *receiver_unchecked(DataLayout* layout, uint row) {
-    oop recv = oop_at(layout, receiver_cell_index(row));
-    return (Klass *)recv;
+    Klass* recv = (Klass*)layout->cell_at(receiver_cell_index(row));
+    return recv;
   }
 
   static void increment_receiver_count_no_overflow(DataLayout* layout, Klass *rcvr) {