@Override
  public void afterUpdate(EntryEvent<String, Configuration> event) {
    super.afterUpdate(event);
    if (event.isOriginRemote()) {
      addOrRemoveJarFromFilesystem(event);
    }
  }
*
CacheListener on ConfigRegion on Locators to write the configuration changes to file-system.
geode-core/src/main/java/org/apache/geode/management/internal/configuration/callbacks/ConfigurationChangeListener.java