DoubleItPortType x509Port =
service.getPort(portQName, DoubleItPortType.class);
updateAddressPort(x509Port, PORT);
Client cxfClient = ClientProxy.getClient(x509Port);
SecurityHeaderCacheInterceptor cacheInterceptor =
new SecurityHeaderCacheInterceptor();
cxfClient.getOutInterceptors().add(cacheInterceptor);
// Make two invocations with the same security header
x509Port.doubleIt(25);
try {