Java Swing桌面应用程序中的自动更新功能

I've developed a desktop Swing app and I'm thinking about the best way to provide the autoupdate feature. I know that JavaWebStart provides this but I think that It doesn't suit my needs because I need to read local files so I would need to sign the jar. Besides, JWS requires extra work to deploy in the server while now I only need to upload the .jar.I've developed a desktop Swing app and I'm thin