diff -r 41cd6f08f3e8 -r 1618c0dd6712 hotspot/src/share/vm/runtime/globals.hpp
--- a/hotspot/src/share/vm/runtime/globals.hpp	Thu Nov 12 09:19:44 2015 +0100
+++ b/hotspot/src/share/vm/runtime/globals.hpp	Thu Nov 12 09:21:16 2015 +0100
@@ -2523,9 +2523,6 @@
   develop(bool, TraceWorkGang, false,                                       \
           "Trace activities of work gangs")                                 \
                                                                             \
-  product(bool, TraceParallelOldGCTasks, false,                             \
-          "Trace multithreaded GC activity")                                \
-                                                                            \
   develop(bool, TraceBlockOffsetTable, false,                               \
           "Print BlockOffsetTable maps")                                    \
                                                                             \