diff -r 36d1d483d5d6 -r da91efe96a93 src/share/vm/gc_implementation/shared/markSweep.inline.hpp
--- a/src/share/vm/gc_implementation/shared/markSweep.inline.hpp	Fri Aug 31 16:39:35 2012 -0700
+++ b/src/share/vm/gc_implementation/shared/markSweep.inline.hpp	Sat Sep 01 13:25:18 2012 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -88,9 +88,8 @@
     oop new_obj = oop(obj->mark()->decode_pointer());
     assert(new_obj != NULL ||                         // is forwarding ptr?
            obj->mark() == markOopDesc::prototype() || // not gc marked?
-           (UseBiasedLocking && obj->mark()->has_bias_pattern()) ||
+           (UseBiasedLocking && obj->mark()->has_bias_pattern()),
                                                       // not gc marked?
-           obj->is_shared(),                          // never forwarded?
            "should be forwarded");
     if (new_obj != NULL) {
       assert(Universe::heap()->is_in_reserved(new_obj),