Issues testing file upload Servlet using SerlvetUnit

I have a servlet with a method called uploadFile that takes Http Request and
Response objects as parameters and returns a byte array of the uploaded file
to the caller...which in this case is the doPost method. I am trying to unit
test the uploadFile method with servletUnit but I am getting this
exception<http://gist.github.com/202486>(
http://gist.github.com/202486).
I am using version 1.6.2. (This is a maven project).

I googled and found the following links talking about problems that are some
what related
1. http://osdir.com/ml/web.httpunit.devel/2005-02/msg00031.html
2. http://osdir.com/ml/web.httpunit.devel/2005-11/msg00020.html

I also looked in the unit tests for the project for way to handle this.  I
searched the mail archives - that wasn't helpful. I went
through the tutorials, but don't see any examples on the homepage that
involve
file upload.

Here <http://gist.github.com/202485> (http://gist.github.com/202485) is the
code(unit-test) that I have.


Any help or guidance is greatly appreciated. Thank you very much for your
time in advance.

Regards,
-Sriram Srinivasan

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