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From Michael Becke <>
Subject Re: [lang] Optimizing Entities and LGPL question
Date Sun, 25 May 2003 16:14:34 GMT
I have found another implementation under the MIT license at:

It does not have an int->Object map but does have a int->String map 
with could easily be converted.  It seems well documented and nicely 
implemented.  I have never used this package before but it looks good.


On Sunday, May 25, 2003, at 10:08 AM, Alex Chaffee / Purple Technology 

> I found an IntHashMap.  Using it gave me a 25% speed improvement on
> lookup over java.util.HashMap, and a 35% improvement on escaping
> performance overall (this difference was due probably to garbage
> collection issues -- the primitive-using one creates no objects during
> lookup).
> The code that I found is from j3d, and it's under an LGPL license.  I
> don't suppose that's compatible with the ASF one?  If we can't just
> grab it, it's not too hard to rewrite it, but it seems a shame to
> reinvent such a wheel.
> Even if we ask the original author to donate it, can he legally waive
> the LGPL now that it's out there?
> -- 
> Alex Chaffee                     
> Purple Technology - Code and Consulting
> jGuru - Java News and FAQs       
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