diff -r bac05440d98c -r 2790da836dc3 src/hotspot/share/runtime/mutex.cpp
--- a/src/hotspot/share/runtime/mutex.cpp	Thu Nov 08 10:08:52 2018 +0100
+++ b/src/hotspot/share/runtime/mutex.cpp	Thu Nov 08 14:32:49 2018 +0100
@@ -383,7 +383,7 @@
       jint rv = Self->rng[0];
       for (int k = Delay; --k >= 0;) {
         rv = MarsagliaXORV(rv);
-        if (SafepointMechanism::poll(Self)) return 0;
+        if (SafepointMechanism::should_block(Self)) return 0;
       }
       Self->rng[0] = rv;
     } else {