code: public static Protos.CommandInfo.URI uri(URL url, boolean cacheable) {
  		checkNotNull(url);
  		return Protos.CommandInfo.URI.newBuilder()
  			.setValue(url.toExternalForm())
  			.setExtract(false)
  			.setCache(cacheable)
  			.build();
  	}
docs: Construct a Mesos URI.