void apply(Settings settings) {
                    def service = settings.gradle.sharedServices.registerIfAbsent("listener", ListenerImpl) { }
                    registry.onTaskCompletion(service)
                }
            }
        """

        when:
        def events = runBuild("compileJava")

        then:
        def operation = events.operation("Task :compileJava")

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

                    public void apply(Project project) {
                        Provider<MyService> sp = getSharedServices().registerIfAbsent("myService", MyService.class);

                        getListenerRegistry().onTaskCompletion(sp);
                    }
                }
            """

            file("convention-kotlin-plugin/build.gradle.kts") << """
                plugins {
                    `kotlin-dsl`