[logback-user] GPL+Classpath exception

Ceki Gulcu listid at qos.ch
Fri May 30 21:47:27 CEST 2008

Hi Anton,

Have you noticed that SLF4J is licensed under an MIT license? Also, given that 
logback-classic natively implements the SLF4J API, client code usually only 
comes into contact with SLF4J. Does that go to alleviate your concerns about 
logback's license, namely LGPL?

Anton Tagunov wrote:
> Hello gentlemen,
> I've been very happy to discover SLF4J.
> Log4j has long needed a rework.
> SLF4J is a fresh wind :)
> It can blow Log4J out of the water.
> If it goes MIT me thinks.
> Ceki> Do we want Big Iron (insert your least favorite IT company here)
> Ceki> to legally pirate an open source project, say logback?
> As SLF4J gains popularity it will likely
> be perceived as same in kind to Log4J.
> However Big Co-s will rather "pirate"
> the conveniently licensed alternative.
> I don't see how Log4J can be replaced this way.
> IMO Logback needs MIT/ASL.
> cheers,
> Anton
> P.S. "cross-posting" to my blog :)
> http://atagunov.blogspot.com/2008/05/slf4j-beyond-log4j.html

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