Spring Social PayPal is a Spring Social extension that provides support for the PayPal Access API. Currently, this extension supports log in using a PayPal identity, and retrieval of the user's profile (such as name, address, telephone number, etc...)
To get started, first check-out the Spring Social PayPal Quickstart sample project:
https://github.com/felipealbertao/spring-social-paypal-quickstart-30x#readme
Then, learn how to use Spring Social PayPal in your application:
https://github.com/felipealbertao/spring-social-paypal/wiki/Quick-Start
This project was based on Spring Social Facebook.