Java – your own openid connect provider (open source)

Openid connect is still a little new. I am looking for open source software to run my own openid connect provider (OP server) It should be as simple as possible (Java or PHP) to quickly set up the test environment But it should also allow me to add custom plug-ins, such as connecting OP to other user authentication factors (2fa)

Connect2id looks like this, but it doesn't seem to be I have also seen other solutions, such as gluu or mitreid connect

Are there any other OP server software available as open source? Which is the easiest start?

Solution

Google uses the "Java, spring" stack to return the following open source openid connect server and client implementations:

https://github.com/mitreid-connect/OpenID-Connect-Java-Spring-Server
https://bitbucket.org/nimbusds/oauth-2.0-sdk-with-openid-connect-extensions