Implementation subjectCimpl = waitForImplByName(null, "subject-c");
CompositeType subjectCCompositeType = (CompositeType) waitForImplByName(
null, "subject-c-composite");
Composite subjectCComposite = (Composite) subjectCCompositeType
.createInstance(null, Collections.<String, String> emptyMap());
// Instance of the subject-a (parent)
Instance subjectC = subjectCimpl
.createInstance(subjectCComposite, null);