diff -r f81a7c0c618d -r 22b8d3d181d9 src/share/vm/runtime/biasedLocking.cpp
--- a/src/share/vm/runtime/biasedLocking.cpp	Wed Oct 03 08:08:52 2012 -0700
+++ b/src/share/vm/runtime/biasedLocking.cpp	Wed Oct 03 20:31:41 2012 +0200
@@ -154,7 +154,7 @@
     return BiasedLocking::NOT_BIASED;
   }
 
-  int age = mark->age();
+  uint age = mark->age();
   markOop   biased_prototype = markOopDesc::biased_locking_prototype()->set_age(age);
   markOop unbiased_prototype = markOopDesc::prototype()->set_age(age);