diff -r 2fcab8ba885a -r f040cf9fc9c0 src/share/vm/opto/c2_globals.hpp
--- a/src/share/vm/opto/c2_globals.hpp	Thu Jan 30 14:30:01 2014 +0100
+++ b/src/share/vm/opto/c2_globals.hpp	Wed Feb 19 20:12:43 2014 -0800
@@ -452,7 +452,7 @@
   notproduct(bool, PrintEliminateLocks, false,                              \
           "Print out when locks are eliminated")                            \
                                                                             \
-  product(bool, EliminateAutoBox, true,                                     \
+  product(bool, EliminateAutoBox, false,                                    \
           "Control optimizations for autobox elimination")                  \
                                                                             \
   experimental(bool, UseImplicitStableValues, false,                        \