As of this morning, Monday Feb 19, 2007 I cannot login successfully in the production ORG (NA4) using a java application that has been in production for over 8 months.  I executed this code successfully last Friday (Feb 16, 2007).
The application works fine when I point to the sandbox account.  My case number is  01123968.
Here is the code that fails:

    public void login (String userName, String pwd, String env){
       
        try {
            service = new SforceService();
            if (env.length()> 0){
                service.setSoapEndpointAddress("https://test.salesforce.com/services/Soap/c/7.0");
            } else {
                service.setSoapEndpointAddress("https://salesforce.com/services/Soap/c/7.0");
            }
            binding = (SoapBindingStub) service.getSoap();
//            binding = (SoapBindingStub) new SforceServiceLocator().getSoap();
        } catch (ServiceException ex1) {
            System.out.println("Service Exception logging on \n" + ex1.getMessage());
            errFlag = true;
            return;
        }
        try {
            lr = binding.login(userName, pwd);
        } catch (UnexpectedErrorFault ex2) {
            System.out.println("unexpected login error \n" + ex2.getExceptionMessage() + "\n\n");
            errFlag = true;
            return;
        } catch (LoginFault ex2) {
            System.out.println("login fault \n" + ex2.getExceptionMessage() + "\n\n");
            errFlag = true;
            return;
        } catch (RemoteException ex2) {
            System.out.println("remote Exception \n" + ex2.getMessage() + "\n\n");
            errFlag = true;
            return;
        }

The error following the login call is :
- Redirect requested but followRedirects is disabled
- Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.

The remote message is:
remote Exception
(301)Moved Permanently


I am using Simon's SforceService override for Soap message compression. Using SforceServiceLocator instead of SforceService gives the same results. Using the 8.0 URL gives the same results. If I don't set the SoapEndPoint the login works fine.
Again, the above code works fine when the SoapEndPoint is set to the sandbox.

I need the ability to run the application in the sandbox as well as the production ORG.  Any help is appreciated.

Thanks,
Harry