}
public void runTest() {
ServiceReference<ExampleClient> ref = context.createSelfReference(ExampleClient.class);
ref.getService().sayHello("Jack");
CallableReference result = myService.hello("Jill", ref);
if (result != null) {
((CallableReference<ExampleClient>)result).getService().sayHello("John");
}
result = myService.hello("Jane", null);
if (result != null) {