How to get the Version Number for JBoss 7 from within a WAR?

For older JBoss these mechanis开发者_JAVA百科ms worked :

• Check for Class org.jboss.mx.util.MBeanServerLocator
• Then use JSR77: Look for a JMX MBean with *:j2eeType=J2EEServer,* and get the attribute serverVersion

or

• Check for an MBean with name jboss.system:type=Server and get the value of attribute Version

But for JBoss 7 neither MBean exists (nor any suitable class to check, with the WAR sitting in its OSGi cage). All I can do is for searching the JMX domain jboss.modules: if it exists infer that this is a Jboss 7.

Is there a way to get the exact version number from within a WAR's init() ?