Can JNLP API load resources during runtime?

is there a way to load JAR resources into an app during runtime? JNLP开发者_开发问答 API ( http://download.oracle.com/javase/6/docs/jre/api/javaws/jnlp/ ) is great because i have custom management of resources, but i can remove resources and if i use DownloadService.loadResource(...) it seems the resource is only downloaded, but the app will have to be started again to benefit from the new resources. Unfortunately, starting a new app and closing the currently running one is not an option for me, so is there a way to actually load these resources during runtime?

Thanks!