code: public void modifiedService(ServiceReference<FilterFactory> reference, FilterFactoryReference service) {
          if (service != null) {
              service.setProperties(reference);
              LOGGER.debug("updated FilterFactory {} for application {}", service.getFactory().getClass().getName(),
                  applicationName);
          }
      }
docs: <p>modifiedService.</p>
  
  @param reference a {@link org.osgi.framework.ServiceReference} object.
  @param service a {@link org.ops4j.pax.wicket.internal.filter.FilterFactoryReference} object.