diff -r f81a7c0c618d -r 22b8d3d181d9 src/share/vm/oops/oop.hpp
--- a/src/share/vm/oops/oop.hpp	Wed Oct 03 08:08:52 2012 -0700
+++ b/src/share/vm/oops/oop.hpp	Wed Oct 03 20:31:41 2012 +0200
@@ -327,7 +327,7 @@
   oop forwardee() const;
 
   // Age of object during scavenge
-  int age() const;
+  uint age() const;
   void incr_age();
 
   // Adjust all pointers in this object to point at it's forwarded location and