Jooby Java

import io.jooby.Jooby;
import io.jooby.MediaType;
import io.jooby.ServerOptions;
import io.jooby.netty.NettyServer;
import java.util.Base64;

public class App extends Jooby {
    static final byte[] GIF = Base64.getDecoder().decode("R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==");

    {
        get("/pixel.gif", ctx -> ctx
                .setResponseType(MediaType.valueOf("image/gif"))
                .setResponseHeader("Cache-Control", "no-store")
                .send(GIF));
    }

    public static void main(String[] args) {
        runApp(args, new NettyServer(new ServerOptions().setPort(8080)), App::new);
    }
}