Hello!

I found a lot of final methods in the code of the cas java client and I'm not 
very happy about it. I extended CAS in a few -and for me very useful- ways, but 
sometimes there were dirty workarounds necessary (badest: copy of the original 
class) to extend your classes.

I found in the wiki (http://www.ja-sig.org/wiki/display/CAS/Code+Conventions) a 
section about the use of final: 

Use of the final keyword.

We use the keyword "final" wherever we can, because it is probably a good idea.

This section is linked to a pdf which I read very carefully: 
http://www.oreilly.com/catalog/hardcorejv/chapter/ch02.pdf

In this PDF you find the following section:
"You should never make a method final unless it must be final. When in doubt, 
leave
the final keyword off a method. After all, you never know the kinds of 
variations the
users of your class may come up with."

Thus I don't understate your explanation. I would like your code having a 
minimum of final methods.

After all I like your project and the product cas very much.

Regards
Björn
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