Let's we have params = ("appResources" => <some, maybe incorrect, path to jar>)

When I'm trying to run Bundler.validate(params), the IllegalArgumentException is thrown.
I'm not sure if that's correct behavior. The RuntimeException is unexpected by user.
I think, if we expect here com.sun.javafx.tools.packager.bundlers.RelativeFileSet, then that should be written in advice in ConfigException.
And one more point: how would RelativeFileSet be passed to, for example, javafxpackager CLI interface?