Get Jboss system property map

If you look at the {jboss.home}/server/default/conf/jboss-service.xml, you can find the code base references the
system property:


..


JBoss managed the system properties and support you use ${varibleName} to reference its value in the configurations.
You may want to know how can I know what system property we can reference .
Here is the answer :

1.Open the Jboss JMX console : http://localhost:8080/jmxp-console

2.Ctrl+F SystemProperties and find this MBean

3.Cliek link for this MBean and find and invoke showAll jmx method.

What do you find ?