import ${BuildEventsListenerRegistry.name}

            def registry = project.services.get(BuildEventsListenerRegistry)
            registry.onTaskCompletion(gradle.sharedServices.registerIfAbsent('broken', BrokenListener) { })
            registry.onTaskCompletion(gradle.sharedServices.registerIfAbsent('listener', LoggingListener) { })

            task a
            task b { dependsOn a }
        """

        when:

        ProviderInternal<?> providerInternal = Providers.internal(provider);
        if (OperationCompletionListener.class.isAssignableFrom(providerInternal.getType())) {
            onTaskCompletion(Cast.uncheckedCast(provider));
        } else {
            onOperationCompletion(Cast.uncheckedCast(provider));
        }
    }

    @Override

                        final String projectName = project.getName();
                        final String uniqueServiceName = "listener of " + project.getName();
                        getListenerRegistry().onTaskCompletion(
                            project.getGradle().getSharedServices().registerIfAbsent(
                                uniqueServiceName,
                                ListenerBuildService.class,