gcj minor bug

[Christophe Roux]

I use Rhug as a java user, so I am not very aware of usage for submitting 
bugs for GCJ.
When trying to connect ot posgresql with pgsql-jdbc, I had a problem of 
database recognition with the Driver.
In fact, I discovered a bug in gcj by the way :
The class StringTokenizer, when returning all tokens ( also separators ), 
gives empty tokens for separators;
in fact, the code "substring( pos, ++pos )" return an empty string;
one's should have writen "substring( pos - 1, ++pos )" which return a single 
caracter for the separator.
I corrected the class for me, and I thought it would be great to give it to 
the community.
But I read the steps needed to contribute to gcj, and my reaction is :
It is very complicated to contribute.
So I ask, can someone tell me how to contribute with a small patch to GCJ 
whithout a lot of stuff.
More over, may be some of you are used to do so and can relay my patch to GCJ.
I join the class StringTokenizer after correction.
More over, I give two other classes, patches to gcj for sockets and 
deserialisation of vectors.
Thanks in advance
Christophe Roux
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