&quot;david.lloyd(a)jboss.com&quot; wrote : OK, so the rule is that SchemaResolverDeployers must, must, MUST produce metadata that implements BMDF. No. ;-) The MD that maps to deployment's element must, must, MUST produce metadata that implements BMDF. e.g. | <deployment xmlns="urn:jboss:bean-deployer:2.0"> | <my-custom-element ...> // <-- HERE | ... | </my-custom-element> | </deployment> | SRD can produce whatever. Since it doesn't mean all SRD's MD is gonna be (directly) used with MC. e.g. you can have a deployer in the middle that does custom transformation: SRD --> custom X MD --> X to BMD(F) --> MC e.g.2 simply use custom MD for some non MC/BMD operation / info My scanning MD: - http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/trunk/dep... - http://anonsvn.jboss.org/repos/jbossas/projects/jboss-deployers/trunk/dep... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4191458#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...