JBoss.org Community Documentation

1.1. JBoss Application Server 5.x

You must set the JBOSS_HOME environment variable to run any of the tutorial examples. 

Unix:    $ export JBOSS_HOME=<where your jboss 5.x distribution is>
Windows: $ set JBOSS_HOME=<where your jboss 5.x distribution is>

To run these examples you need JBossAS 5.0.1 GA or higher version (if available). JBossAS can be downloaded from here.