--- a/hotspot/src/share/vm/oops/method.cpp	Tue Jan 26 17:13:18 2016 +0100
+++ b/hotspot/src/share/vm/oops/method.cpp	Thu Jan 28 09:49:17 2016 +0100
@@ -1201,8 +1201,10 @@
   m->set_vtable_index(Method::nonvirtual_vtable_index);
   m->link_method(m, CHECK_(empty));
 
-  if (TraceMethodHandles && (Verbose || WizardMode))
+  if (TraceMethodHandles && (Verbose || WizardMode)) {
+    ttyLocker ttyl;
     m->print_on(tty);
+  }
 
   return m;
 }