diff -r 7024b693c8f9 -r b12a2a9b05ca src/share/vm/runtime/thread.cpp
--- a/src/share/vm/runtime/thread.cpp	Mon Nov 03 12:02:40 2014 -0800
+++ b/src/share/vm/runtime/thread.cpp	Thu Oct 02 10:55:36 2014 +0200
@@ -234,6 +234,8 @@
   // This initial value ==> never claimed.
   _oops_do_parity = 0;
 
+  _metadata_on_stack_buffer = NULL;
+
   // the handle mark links itself to last_handle_mark
   new HandleMark(this);