java source code audit

[Guillermo Caminer <gcaminer () flowgate net>]

Hi list!
I'm doing a source code audit of a client-server application developed in Java.
They're using Hibernate, so I'm discarding SQL injection vulnerabilities.
Because they developed a client of their own instead of using a Web browser, I'm discarding XSS, Parameter tamping, 
XST, etc...
Also, they don't have any 'Bad session store' vulnerabilities.
Finally, because of Java, Buffer overflows are out of the picture.
My question is: what kind of vulnerability should I check for?
Thanks in advance!

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