I guess the spi should live in jboss-ejb3-ext-api under org.jboss.ejb3.resolver package. The Ejb3Deployment needs to be updated to allow injection of the spi for the EjbModuleEjbResolver, EjbModulePersistenceUnitResolver and MessageDestinationResolver. These will be the default implementations of the spis initialized in the ctor with the expectation that the integration code will override as needed. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4140590#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...