Using JBoss 5.1, you can clone your JasperReports Server install by copying an existing JRS WAR file to a new JBoss instance. While this method isn’t strictly supported, some users have experienced good results.
The question is this: will the same method work when JasperReports Server 5.1 is hosted by JBoss AS7/EAP6?
The short answer is no.
This procedure does not work for JBoss AS7/EAP6 because, in addition to the JasperReports Server web application and the repository contents, Jaspersoft’s buildomatic creates a new module (jaspersoft.org.apache.batik) under the JBoss modules directory. If this module is not present, deployment will fail.
(Please note that JBoss AS7/EAP6 is not supported with JasperReports Server versions earlier than 5.1.)