PicketLink samples contains the samples for Federated Identity Needs.
'org.picketlink:circleoftrust:2.0.1.final'
<dependency>
<groupId>org.picketlink</groupId>
<artifactId>circleoftrust</artifactId>
<version>2.0.1.final</version>
</dependency>
<dependency org="org.picketlink" name="circleoftrust" rev="2.0.1.final"/>
"org.picketlink", "circleoftrust", "2.0.1.final"