ContributionService contributionService = scaDomain.getContributionService();
URL serviceURL = new File("./target/classes/sdo/ds/HelloWorldService.jar").toURI().toURL();
URL clientURL = new File("./target/classes/sdo/ds/HelloWorldClient.jar").toURI().toURL();
Contribution serviceContribution = contributionService.contribute("HelloWorldService", serviceURL, true);
Contribution clientContribution = contributionService.contribute("HelloWorldClient", clientURL, true);
for (Composite deployable : serviceContribution.getDeployables()) {
scaDomain.getDomainComposite().getIncludes().add(deployable);
scaDomain.buildComposite(deployable);