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From "Tal Dayan" <>
Subject RE: [digester] forcing a specific DTD
Date Wed, 14 Nov 2001 19:19:51 GMT
I am not a lawyer either but possibly it can be view as follows:

1. The authors have the original copyright.

2. By contributing the code to a GPL project, the authors are allowing
others to use
their pieces of code under the GPL license.

3. The authors can also release their code under other licenses.

Because of the dependency between the contributions of the various authors
(e.g. applying a patch to an existing code), you probably need *all* the
authors to agree to release the code *also* under a different license. Of
course, you can not revoke the old license but it will apply only to the old

This is just a layman point of view.


> -----Original Message-----
> From: Michael Gerdau []
> Sent: Wednesday, November 14, 2001 11:05 AM
> To: Jakarta Commons Developers List
> Subject: RE: [digester] forcing a specific DTD
> >I am not sure. It is very long and I am not a lawyer ;-)
> >
> >One way to convert it to ASL is to ask for the permissions of the
> >authors. This is how Lucene became a Jakarta project, it used to
> >be GPL.
> I'm no lawyer either. But one of the most prominent properties of
> the GPL (at least to my understanding) is its "stickyness". Once some
> code is GPL'd you can't take away that property no matter what you
> do.
> If I recall it right this was one of the driving forces to create the
> GPL the way it is.
> Best,
> Michael
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