set targetNamespace at runtime on JAX-WS proxy when using org.apache.cxf.jaxws.JaxWsProxyFactoryBean

RuntimeTargetNamespace.java

public <T> T getServiceClient(Class<T> interfaceClass, final String targetNamespace) {
  JaxWsProxyFactoryBean interfaceFactory = new JaxWsProxyFactoryBean();
  interfaceFactory.setServiceFactory(new JaxWsServiceFactoryBean() {
    @Override
    protected OperationInfo createOperation(ServiceInfo serviceInfo, InterfaceInfo intf, Method m) {
      intf.setName(new QName(targetNamespace, intf.getName().getLocalPart())); //overwrite the default namespace with target
      return super.createOperation(serviceInfo,intf,m);
    }
  });
}