Thank you for your answer.
Yes. That is the one i used as my template and everything seems to be running ok. It's just that the authenticate method on that identity provider never gets called.
I'm not sure if i'm missing something in the configuration. For example, what should i put in the "JAAS Realm" textfield in "Apache Jackrabbit Oak External Login Module" configuration? Is the default "jackrabbit.oak" or "com.day.crx" or empty or something else..?