How to access the FirstData web service integration WSDL file?
Please correct the wsdl url to https://www.staging.linkpointcentral.com/fdggwsapi/services/order.wsdl and try generating the stub classes. I tried in browser and i am able to generate java stubs.
Yeah it looks like you were pointing to the wrong URL. Also, http://www.robinsontechnical.com has information on First Data Web Services too.
https://ws.merchanttest.firstdataglobalgateway.com/fdggwsapi/services/order.wsdl
This seems to be the correct URL for the test environment.