--- old/src/hotspot/share/gc/shared/gc_globals.hpp	2018-11-30 15:40:38.393783987 +0100
+++ new/src/hotspot/share/gc/shared/gc_globals.hpp	2018-11-30 15:40:37.954770854 +0100
@@ -348,8 +348,8 @@
   develop(uintx, PromotionFailureALotInterval, 5,                           \
           "Total collections between promotion failures a lot")             \
                                                                             \
-  experimental(bool, UseOWSTTaskTerminator, true,                           \
-          "Use OWST(Optomized Work Stealing Threads) task termination "     \
+  diagnostic(bool, UseOWSTTaskTerminator, true,                             \
+          "Use OWST (Optimized Work Stealing Threads) task termination "    \
           "protocol")                                                       \
                                                                             \
   experimental(uintx, WorkStealingSleepMillis, 1,                           \