well, take a look at the $JBOSS_HOME/server/default/deploy
folder and you will find there the jmx-console.war exploded version
this means that you are able to access
http://localhost:8080/jmx-console/ which will show you what you found before at http://localhost:8082/
easy, isn't it ?
I posted this answer already to another user a couple of days ago.
Thank you I appreciate the help.