So the driving factor for this is the fact that the deployment templates can have ManagedPropertys that have no value. Either templates need include initial values for all properties (maybe not reasonable?), or we need to update the MetaType to support a createValue(TypeInfo), or allow a null in convertValue(Object value, TypeInfo type). What is most practical? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127929#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...