troubleshooting Question

Accessing JSP using WGET (timestamp option '-N')

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rnicholus asked on
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I have a JSP that serves file to our clients.  Please see code snippet.

We have a client using "WGET" utility to get the data.
It's working ok for this command:
wget --http-user=username --http-passwd=password 'http://....'

But now they want to use "-N" (timestamping) option:
wget -N --http-user=username --http-passwd=password 'http://....'

What they get is:
# HTTP request sent, awaiting response... 500 Internal Server Error  
# 14:30:56 ERROR 500: Internal Server Error.

I added this line but doesn't seem to help:
response.setHeader("Last-Modified", myFile.getLastModified());

Can someone please advise the best way to do this?
Thanks in advance for all the help.
String filename = ".....";
File myFile = new File(filename);	
BufferedInputStream in = new BufferedInputStream(
response.setHeader ("Content-Disposition", "attachment;filename=" + filename.replaceFirst(".+/(.+)", "$1"));
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