Has anyone had problems with forward proxy servers?

[ri...@peoplesoft.com]

I'm testing the wsrp4j consumer (ProxyPortlet) in an environment that
requires going through a NetCache proxy server to get to the internet.
Whenever I requested a producer on the internet I would get an HTTP 500 on
the WSRP getServiceDescription. It turns out that the proxy was the one
returning the error because it claims that it received a bad URL. Upon
looking closer at the logs in the proxy server it appears that axis isn't
sending complete URL's in the requests. The scheme, host and port and
missing. Only the "file" part of the URL is in the POST line (but the
request does have the correct "Host:" header).

My question: What's the right thing to do here?
1. Is axis correct in sending the first HTTP line without the
scheme://host:port?
2. Is the proxy correct in rejecting the request without them?
3. Is there some inappropriate coding in wsrp4j that causes axis to do
this?
4. Something else?

Thanks for your time.

p.s. Here's a sample of what I mean:

POST /WSRPTestService/WSRPTestService.asmx HTTP/1.0
Content-Type: text/xml; charset=utf-8
Accept: application/soap+xml, application/dime, multipart/related, text/*
User-Agent: Axis/1.2beta
Host: wsrp.netunitysoftware.com:80
Cache-Control: no-cache
Pragma: no-cache
SOAPAction: "urn:oasis:names:tc:wsrp:v1:getServiceDescription"
Content-Length: 597

<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 <soapenv:Body>
  <getServiceDescription xmlns="urn:oasis:names:tc:wsrp:v1:types">
   <registrationContext>

<registrationHandle>0b7c607a-5604-42d0-992a-9ca0c84c6628</registrationHandle>
    <registrationState/>
   </registrationContext>
   <desiredLocales>en</desiredLocales>
   <desiredLocales>nl</desiredLocales>
  </getServiceDescription>
 </soapenv:Body>
</soapenv:Envelope>