>
> We know what it is used for, but why choose 4 rather than 3 or 42 or 1?
>
> Is it arbitrary? If so, what is the possible range?
> If not arbitrary, why choose 4?
>

I honestly don't have any idea! :)
it has inherited from original implementation, I just took care of
fixing the magic number issue. Any suggestion would be really
appreciated!
Simo

http://people.apache.org/~simonetripodi/
http://www.99soft.org/

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