src/share/classes/sun/awt/SunToolkit.java

*** 485,496 ****
--- 485,498 ----
          // otherwise have to be modified to precisely identify
          // system-generated events.
          setSystemGenerated(event);
          AppContext eventContext = targetToAppContext(event.getSource());
          if (eventContext != null && !eventContext.equals(appContext)) {
+             if (log.isLoggable(PlatformLogger.FINE)) {
                  log.fine("Event posted on wrong app context : " + event);
              }
+         }
          PostEventQueue postEventQueue =
              (PostEventQueue)appContext.get(POST_EVENT_QUEUE_KEY);
          if (postEventQueue != null) {
              postEventQueue.postEvent(event);
          }