To take a look at the Joop code (it's only two source files!) you can point your subversion client to the following url:
http://christophermrossi.com/svn/joop/
You can also browse the repository in your web browser using the same url. I recommend taking a look at the unit tests in the 'src/test' directory to see how simple Joop is to use. I tried to write a lot of good comments in the code, many of which are captured in the java docs.
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