StAXArtifactProcessorExtensionPoint staxProcessors = extensionPoints.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class);
staxProcessors.addArtifactProcessor(new TestPolicyProcessor());
URL url = BuildPolicyTestCase.class.getResource("CalculatorComponent.constrainingType");
URI uri = URI.create("CalculatorComponent.constrainingType");
ConstrainingType constrainingType = (ConstrainingType)documentProcessor.read(null, uri, url);
assertNotNull(constrainingType);
resolver.addModel(constrainingType);
url = BuildPolicyTestCase.class.getResource("TestAllPolicyCalculator.composite");
uri = URI.create("TestAllCalculator.composite");