src/hotspot/share/runtime/vframe.cpp

@@ -222,11 +222,11 @@
         continue;
       }
       if (monitor->owner() != NULL) {
         // the monitor is associated with an object, i.e., it is locked
 
-        markWord mark(0);
+        markWord mark(markWord::zero);
         const char *lock_state = "locked"; // assume we have the monitor locked
         if (!found_first_monitor && frame_count == 0) {
           // If this is the first frame and we haven't found an owned
           // monitor before, then we need to see if we have completed
           // the lock or if we are blocked trying to acquire it. Only

@@ -239,13 +239,16 @@
                 // we are not the owner of this monitor
                 !mark.monitor()->is_entered(thread())
               )) {
             lock_state = "waiting to lock";
           } else {
+                        // FIXME: mark is set but not used below.
+                        //        Either the comment or the code is broken.
+                  
             // We own the monitor which is not as interesting so
             // disable the extra printing below.
-            mark = markWord(0);
+            mark = markWord(markWord::zero);
           }
         }
         print_locked_object_class_name(st, Handle(THREAD, monitor->owner()), lock_state);
 
         found_first_monitor = true;