@BeforeClass
public static void setUpBeforeClass() throws Exception {
emailGatewayNode =
SCANodeFactory.newInstance().createSCANode("emailgateway.composite",
new SCAContribution("emailgateway",
"../emailgateway/target/classes"),
new SCAContribution("emailgateway-test",
"../emailgateway/target/test-classes"));
emailGatewayNode.start();
paymentNode =
SCANodeFactory.newInstance().createSCANode(null,
new SCAContribution("payment-python", "./target/classes"),
new SCAContribution("payment-python-test",
"./target/test-classes"));
paymentNode.start();
}