@Override
    public void start() {
        try {
            preStart();
            echoServer.start();
            gatewayServer.start();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
@see io.apiman.test.common.resttest.IGatewayTestServer#start()
gateway/test/src/test/java/io/apiman/gateway/test/junit/servlet/ServletGatewayTestServer.java