SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).

SuperTokens.com

I am thinking of "Support for additional frameworks" under road map. Especially with the java.
But I am Someone who don't even know what a authentication is and trying to understand the super tokens.
When I searched net I come across terms such as oauth, jwt,openId ect
So supertoken is one among them?
Any pointers will be helpful for me to get started.

SuperTokens is an auth solution you can use in your app to build the login part of it quickly and easily. The terms you mentioned are explained in our blogs here: https://supertokens.com/blog