diff -r f040cf9fc9c0 -r 752ba2e5f6d0 src/share/vm/opto/parse3.cpp
--- a/src/share/vm/opto/parse3.cpp	Wed Feb 19 20:12:43 2014 -0800
+++ b/src/share/vm/opto/parse3.cpp	Tue Feb 25 15:11:18 2014 -0800
@@ -361,7 +361,7 @@
     //   should_be_constant = (oop not scavengable || ScavengeRootsInCode >= 2)
     // An oop is not scavengable if it is in the perm gen.
     if (stable_type != NULL && con_type != NULL && con_type->isa_oopptr())
-      con_type = con_type->join(stable_type);
+      con_type = con_type->join_speculative(stable_type);
     break;
 
   case T_ILLEGAL: