node = nodeFactory.createSCANode("http://localhost:8200/node", null);
node.addContribution("nodeB", cl.getResource("nodeB/"));
node.addContribution("nodeC", cl.getResource("nodeC/"));
node.addToDomainLevelComposite(new QName("http://sample", "CalculatorB"));
node.addToDomainLevelComposite(new QName("http://sample", "CalculatorC"));
node.start();
calculatorServiceB = node.getDomain().getService(CalculatorService.class, "CalculatorServiceComponentB");
subtractServiceC = node.getDomain().getService(SubtractService.class, "SubtractServiceComponentC");
for(int j=0; j < 20; j++){