I haven't changed anything in that area, so most likely this is caused by the upgrade to JBoss XB? That upgrade would use the org.jboss.aop.microcontainer.beans.metadata.AOPDeployment class as the root of JAXB parsing instead of the aop bean schemainitializer. Since AOPDeployment does not exist in mc trunk, how does the aop stuff even get parsed at the moment? I can switch to use the JAXB stuff later today: http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4140727#... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4140889#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...