In order for the Login Service referenced in the videos to work properly, you need to update the Maven dependency version from 2.1 to 2.2 of org.apache.sling.jcr.api in the Parent and the POM files:
<dependency>
<groupId>org.apache.sling</groupId>
<artifactId>org.apache.sling.api</artifactId>
<version>2.2.0</version>
<scope>provided</scope>
</dependency>
If you are using the archetype instead of the course files, this dependency will be included automatically.
