webclipping portlet modifications

Hi all,

I'm developing on a site with Jahia Professional Edition 5.0. We are
using webclipping portlet (nice job, guys), and I need to modificate it
in order to pass some variables to the target URL (like the jahia user
for example). I have downloaded webclipping cvs code from gmane, and
after do the changes, the problem now is just recompile the portlet. 

I've tried just recompiling the WebClippingServlet.java but I have lot
of  symbol errors, probably because my classpath is not correct. I'm
including servlet-api.jar and jericho-html class (but Im not sure what
is the correct version for this one)

I've been successfull in recompiling Rewrite.java (using
jericho-html-1.4) but after compress the war and deploy it, it doesnt
work (I could send the logs if necessary, but resuming: some
methods/functions are missing). 

Well, as long as I dont really know how to recompile all the cvs code,
what I'm doing is just try to recompile file by file, decompress the war
from jahia's portlets list, exchange the old .class for mine and
compressing again

Questions are: 

- Is that a correct (or at least a possible) way to recompile the
portlet from cvs or I'm just a looser? :P

- Can someone please tell me what is the classpath that I must use?


Thanks a lot in advance.