The JBoss EAP product published by Red Hat forks from the WildFly application server, on our documentation page we also include the Javadoc of the version of WildFly Elytron included in the JBoss EAP versions.

JBoss EAP 8 contains WildFly Elytron 2.2.2.Final

The public API for WildFly Elytron 2.2.2.Final should be generated and listed against JBoss EAP 8.