org.jboss.deployment.SubDeployerInterceptorSupport performs an implicit attach() in startService() and an implicit detach() in stopService().

Subclasses that need the attach()/detach() to take place in the createService()/destroyService() methods instead, can always override this behaviour, however, it seems better to just remove the startService()/stopService() overrides and let the programmer decide where attach()/detach() should happen.