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I might just kill myself...Problem with context paths  RSS feed

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I'm completely baffled by the server paths that I have to use within my servlet. I keep on getting AccessControlExceptions with the flag indicating a "write" exception.
I created a SecurityManager object and it did not throw any exceptions when I checked for write permissions to the file in question:
Object context = null;
SecurityManager sm = System.getSecurityManager();
However, when I try to write to it using TransformFactory I either get a "java.io.FileNotFoundException: /server1/home/user98/webapp/cw2/rssoutput.html (Permission denied) " error, or in the case of having the path set to "/cw2/rssoutput.html", which accesses the same location from the webapp context, I get:
"java.security.AccessControlException: access denied (java.io.FilePermission /cw2/rssoutput.html write)"
The transformation code is:
public String doTransform(String strInputFile) throws TransformerException,
TransformerConfigurationException,FileNotFoundException, IOException
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer(new StreamSource("http://my_web_site/user98/webapp/cw2/renderer.xsl"));
transformer.transform(new StreamSource(strInputFile), new StreamResult(new FileOutputStream("/cw2/rssoutput.html")));
return ("<br><br>Transform done!");
I have tried setting permissions on files and folders to 777, but to no avail. As you can see, it works for the StreamSource object since I've set it to an absolute http path, but that doesn't seem to work with my FileOutStream object.
Any pointers? Thanks for your time everyone.
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
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