code: private void installFastProcessAnnotatedTypeResolver(ServiceRegistry services) {
          ClassFileServices classFileServices = services.get(ClassFileServices.class);
          if (classFileServices != null) {
              final GlobalObserverNotifierService observers = services.get(GlobalObserverNotifierService.class);
              try {
                  final FastProcessAnnotatedTypeResolver resolver = new FastProcessAnnotatedTypeResolver(observers.getAllObserverMethods());
                  services.add(FastProcessAnnotatedTypeResolver.class, resolver);
              } catch (UnsupportedObserverMethodException e) {
                  BootstrapLogger.LOG.notUsingFastResolver(e.getObserver());
                  return;
              }
          }
      }
docs: needs to be resolved once extension beans are deployed