--- old/src/hotspot/share/runtime/synchronizer.cpp	2019-08-27 15:54:08.757572776 +0000
+++ new/src/hotspot/share/runtime/synchronizer.cpp	2019-08-27 15:54:07.478542933 +0000
@@ -258,9 +258,9 @@
 
 // -----------------------------------------------------------------------------
 // Monitor Enter/Exit
-// The interpreter and compiler use some assembly copies of this code. Make sure
-// update those code if the following function is changed. The implementation
-// is extremely sensitive to race condition. Be careful.
+// The interpreter and compiler assembly code tries to lock using the fast path
+// of this algorithm. Make sure to update that code if the following function is
+// changed. The implementation is extremely sensitive to race condition. Be careful.
 
 void ObjectSynchronizer::enter(Handle obj, BasicLock* lock, TRAPS) {
   if (UseBiasedLocking) {