jar(Stoppable)
        ]
        ClassLoader classLoader = new URLClassLoader(jars, null as ClassLoader)
        Class nativeServicesClass = classLoader.loadClass(NativeServices.getName())
        JavaMethod nativeServicesGetInstance = JavaMethod.ofStatic(nativeServicesClass, nativeServicesClass, "getInstance")

        when:
        nativeServicesGetInstance.invokeStatic()

        then:
        def e = thrown(IllegalStateException)