diff -r 4904bded9702 -r 9a4141de094d src/share/vm/runtime/biasedLocking.cpp
--- a/src/share/vm/runtime/biasedLocking.cpp	Tue Feb 04 11:16:27 2020 +0800
+++ b/src/share/vm/runtime/biasedLocking.cpp	Fri Feb 14 17:13:16 2020 +0100
@@ -256,10 +256,12 @@
     }
   }
 
+#if INCLUDE_JFR
   // If requested, return information on which thread held the bias
   if (biased_locker != NULL) {
     *biased_locker = biased_thread;
   }
+#endif // INCLUDE_JFR
 
   return BiasedLocking::BIAS_REVOKED;
 }
@@ -497,11 +499,15 @@
       if (TraceBiasedLocking) {
         tty->print_cr("Revoking bias with potentially per-thread safepoint:");
       }
+
       JavaThread* biased_locker = NULL;
       _status_code = revoke_bias((*_obj)(), false, false, _requesting_thread, &biased_locker);
+#if INCLUDE_JFR
       if (biased_locker != NULL) {
         _biased_locker_id = JFR_THREAD_ID(biased_locker);
       }
+#endif // INCLUDE_JFR
+
       clean_up_cached_monitor_info();
       return;
     } else {
@@ -516,9 +522,11 @@
     return _status_code;
   }
 
+#if INCLUDE_JFR
   traceid biased_locker() const {
     return _biased_locker_id;
   }
+#endif // INCLUDE_JFR
 };