(WAS) Lesson Learned: No need to restart server on application properties file update

If you have a properties file in your application which you need to update, all you need to do is STOP the application, modify the properties file, then START the application again. The properties file should now be updated.
If you have not externalized your properties file, you can access it in the profile_root/installedApps/cell_name/application_name/war_file/WEB-INF/classes. If you've place your properties file inside a package, just dig down the package path.