The answer is no. None of the code within Lucene.Net is GPL. All Apache
products are under the Apache License.
> -----Original Message-----
> From: Ron Grabowski [mailto:rongrabowski@yahoo.com]
> Sent: Thursday, October 06, 2011 12:11 AM
> To: lucene-net-dev@lucene.apache.org
> Subject: Re: [Lucene.Net] Asking about Lucene.net License
>
> I think he was asking if any of the code within Lucene.Net is GPL.
>
>
> ________________________________
> From: Scott Lombard <lombardenator@gmail.com>
> To: lucene-net-dev@lucene.apache.org
> Sent: Wednesday, October 5, 2011 5:08 PM
> Subject: RE: [Lucene.Net] Asking about Lucene.net License
>
> Asha,
>
> Lucene.net is an Apache Incubator project and is only distributed under an
> Apache License version 2. If you are using a GPL 3 License then there is
> documented compatibility between the licenses as described on the page
> http://www.apache.org/licenses/GPL-compatibility.html. Give this
> compatibility you can include Lucene.net in a GPL 3 project. I am not
> sure
> how on all of the mechanics of this inclusion but it can be done.
>
> Scott
>
> > -----Original Message-----
> > From: Asha Kang [mailto:stereo172@gmail.com]
> > Sent: Tuesday, October 04, 2011 8:57 PM
> > To: lucene-net-dev@lucene.apache.org
> > Subject: [Lucene.Net] Asking about Lucene.net License
> >
> > Hi this is Asha Kang from Korea.
> >
> > the reason i`m writing this email is that I`d like to make sure which
> > license Lucene.net is following.
> > Now I`m developing Search Engine by using Lucene.net.
> > As I know, Lucene.net follows apache licene 2.0.
> > but my co-woker told me that some classes included in lucene.net`s dll
> > could follow GPL License.
> > So now I`m confused.
> > Are there any classes following GPL LICENSE?
> > Do I need to follow two license apache license 2.0 and GPL LICENSE?
> >
> > I'm looking forward to replying from you.
> >
> > bset regards
> >
> > Asha Kang.
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