I saw this post and build an example war file from it to test a JBOSS(EAP 6.4) I setted up.

The included war-file ist build with Java 1.8.0_111, but it ran without problems on a JDK7 JBOSS-EAP 6.4 server.

Download the war-file and copy it to the [jboss-home]/standalone/deployments/ folder. JBOSS will automatically delpoy the project.

Now you can check if it has worked under http(s)://[your-jboss-adress-here]/helloworld/.

This file is only testet on JBOSS EAP 6.4 under Java 7 on CentOS 7.