diff -r 9a9bb0010c91 -r 500023bd0818 src/share/vm/code/nmethod.hpp
--- a/src/share/vm/code/nmethod.hpp	Tue Mar 27 10:29:59 2012 +0200
+++ b/src/share/vm/code/nmethod.hpp	Tue Mar 13 11:05:32 2012 -0700
@@ -553,7 +553,7 @@
   static void oops_do_marking_prologue();
   static void oops_do_marking_epilogue();
   static bool oops_do_marking_is_active() { return _oops_do_mark_nmethods != NULL; }
-  DEBUG_ONLY(bool test_oops_do_mark() { return _oops_do_mark_link != NULL; })
+  bool test_oops_do_mark() { return _oops_do_mark_link != NULL; }
 
   // ScopeDesc for an instruction
   ScopeDesc* scope_desc_at(address pc);