diff -r f81a7c0c618d -r 22b8d3d181d9 src/share/vm/gc_implementation/parallelScavenge/psPromotionManager.inline.hpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psPromotionManager.inline.hpp	Wed Oct 03 08:08:52 2012 -0700
+++ b/src/share/vm/gc_implementation/parallelScavenge/psPromotionManager.inline.hpp	Wed Oct 03 20:31:41 2012 +0200
@@ -85,7 +85,7 @@
 
     if (!promote_immediately) {
       // Find the objects age, MT safe.
-      int age = (test_mark->has_displaced_mark_helper() /* o->has_displaced_mark() */) ?
+      uint age = (test_mark->has_displaced_mark_helper() /* o->has_displaced_mark() */) ?
         test_mark->displaced_mark_helper()->age() : test_mark->age();
 
       // Try allocating obj in to-space (unless too old)