private static void initClient() {
URL wsdl = ExtSoapHeaderClientServerTest.class.getResource("/wsdl_systest/soap_ext_header.wsdl");
assertNotNull("WSDL is null", wsdl);
SampleService service = new SampleService(wsdl, SERVIVE_NAME);
assertNotNull("Service is null ", service);
client = service.getSamplePort();
}