Looking for logging into the Java Paypal site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Java Paypal site. After that you can login as usual with your login credentials.
https://github.com/paypal/PayPal-Java-SDK/wiki/Making-First-Call
https://crunchify.com/paypal-java-sdk-tutorial-authorization-call/
https://developer.paypal.com/
https://developer.paypal.com/docs/api/quickstart/payments/
https://developer.paypal.com/docs/classic/lifecycle/code-samples/
https://developer.paypal.com/docs/directory/
https://developer.paypal.com/docs/api/rest-sdks/
https://www.paypal.com/de/webapps/mpp/paypal-plus-center
https://www.paypal.com/kz/smarthelp/article/how-do-i-log-in-to-developer.paypal.com-ts1499
https://stackoverflow.com/questions/29429344/paypal-login-with-java-rest-api
https://developers.braintreepayments.com/guides/paypal/testing-go-live/java
https://mvnrepository.com/artifact/com.paypal.sdk
https://quickbooks.intuit.com/community/Banking/PayPal-account-connect-error-java-lang-NumberFormatException-For/td-p/190541