WPS client output

The query: [971]
<?xml version="1.0" encoding="UTF-8"?>
<wps:Execute service="WPS"version="1.0.0"language="en-CA"
xmlns:wps="http://www.opengis.net/wps/1.0.0"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wps/1.0.0/wpsExecute_request.xsd">

<ows:Identifier>bufferProcess</ows:Identifier>

<wps:DataInputs>

 <wps:Input>
  <ows:Identifier>data</ows:Identifier>
  <wps:Reference xlink:href="http://services.iguess.tudor.lu/cgi-bin/mapserv?map=/var/www/MapFiles/Europe4326.map&SERVICE=WFS&VERSION=1.1.0&REQUEST=GetFeature&TYPENAME=testLines4326" />
 </wps:Input>

 <wps:Input>
  <ows:Identifier>size</ows:Identifier>
      <wps:Data>
        <wps:LiteralData>1</wps:LiteralData>
      </wps:Data>
 </wps:Input>

</wps:DataInputs>

  <wps:ResponseForm>
	<wps:ResponseDocument lineage="true"
		storeExecuteResponse="true" status="true">
	</wps:ResponseDocument>
  </wps:ResponseForm>

</wps:Execute>
----------------------------------------


500 Internal Server Error Date: Tue, 25 Sep 2012 09:03:02 GMT
Server: Apache/2.2.14 (Ubuntu)
Vary: Accept-Encoding
Content-Length: 628
Connection: close
Content-Type: text/html; charset=iso-8859-1

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>500 Internal Server Error</title>
</head><body>
<h1>Internal Server Error</h1>
<p>The server encountered an internal error or
misconfiguration and was unable to complete
your request.</p>
<p>Please contact the server administrator,
 [no address given] and inform them of the time the error occurred,
and anything you might have done that may have
caused the error.</p>
<p>More information about this error may be available
in the server error log.</p>
<hr>
<address>Apache/2.2.14 (Ubuntu) Server at services.iguess.tudor.lu Port 80</address>
</body></html>