private HelloWorldClientLauncher externalClient;
@Before
public void setUp() throws Exception {
// Start the external service
externalService = new HelloWorldServiceLauncher();
externalService.createService();
// Start the SCA contribution
node = NodeFactory.newInstance().createNode(new Contribution("java-first", "../contribution-callback-fullspec/target/itest-ws-contribution-callback-fullspec.jar"));
node.start();