diff -r 5637aca18f1d -r c49a01150a66 src/hotspot/share/runtime/globals.hpp
--- a/src/hotspot/share/runtime/globals.hpp	Mon Jun 25 09:59:16 2018 -0700
+++ b/src/hotspot/share/runtime/globals.hpp	Mon Jun 25 13:47:27 2018 -0400
@@ -854,12 +854,6 @@
           "When true prevents OS-level spurious, or premature, wakeups "    \
           "from Object.wait (Ignored for Windows)")                         \
                                                                             \
-  experimental(intx, NativeMonitorTimeout, -1, "(Unstable)")                \
-                                                                            \
-  experimental(intx, NativeMonitorFlags, 0, "(Unstable)")                   \
-                                                                            \
-  experimental(intx, NativeMonitorSpinLimit, 20, "(Unstable)")              \
-                                                                            \
   develop(bool, UsePthreads, false,                                         \
           "Use pthread-based instead of libthread-based synchronization "   \
           "(SPARC only)")                                                   \