Is javamail a less secure application?

Question

I was just working on an email program that read emails from Gmail and does further processing. Initially using the code provide in SO(link provided below) I was getting an

Answer 1

It's really hard to tell because Google isn't saying exactly what "modern security standards" an app needs to implement to be "more secure", but I suspect they're referring to this blog entry where they talk about OAuth2. JavaMail is capable of using the OAuth2 authentication mechanism, which I guess makes JavaMail a "more secure" application.