--- old/src/hotspot/cpu/x86/rdtsc_x86.cpp	2019-09-08 23:47:40.074768464 -0400
+++ new/src/hotspot/cpu/x86/rdtsc_x86.cpp	2019-09-08 23:47:38.862756017 -0400
@@ -62,7 +62,7 @@
     fstart = os::rdtsc();
 
     // use sleep to prevent compiler from optimizing
-    os::sleep(JavaThread::current(), FT_SLEEP_MILLISECS);
+    JavaThread::current()->sleep(FT_SLEEP_MILLISECS);
 
     end = os::elapsed_counter();
     OrderAccess::fence();