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From Geir Magnusson Jr <g...@pobox.com>
Subject Re: Intention to work on Pack200 uncompressor/compressor
Date Fri, 26 May 2006 13:14:19 GMT


Tim Ellison wrote:
> Geir Magnusson Jr wrote:
>> Tim Ellison wrote:
>>> Geir Magnusson Jr wrote:
>>>> Jimmy, Jing Lv wrote:
>>>>>> Alex Blewitt wrote:
>>>>>> Hi everyone,
>>>>>>
>>>>>> I'd like to start work on an implementation of the pack200
>>>>>> decompression algorithm, from the specification which is available
at
>>>>>> http://www.jcp.org/aboutJava/communityprocess/first/jsr200/
>>>>>>
>>>>> I shall give you a warm welcome for implementation of Pach200! :)  But
>>>>> as I know few about the legality, I wonder it is legal for us(Harmony
>>>>> developers) to read such algorithm directly from jcp.org? Can anyone
>>>>> give an answer? Let's go ahead if there's no obstacle.
>>>> What?  If we implement a spec from the JCP, we get the TCK and pass it.
>>>>  That's it.
>>> The license I get to by following the URL above states (amongst other
>>> things):
>>>
>>> "This license includes the right to discuss the Specification (including
>>> the right to provide limited excerpts of text to the extent relevant to
>>> the point[s] under discussion) with other licensees (under this or a
>>> substantially similar version of this Agreement) of the Specification.
>>> Other than this limited license, you acquire no right, title or interest
>>> in or to the Specification or any other Sun intellectual property, and
>>> the Specification may only be used in accordance with the license terms
>>> set forth herein."
>>>
>>>
>>> IANAL but that doesn't appear to give us rights to implement the spec
>>> via that source?  What am I missing?
>> Alex gave us the link to the Proposed Final Draft, which isn't licensed
>> for implementation, not the final spec itself.
>>
>> That can be found here
>>
>> http://jcp.org/aboutJava/communityprocess/final/jsr200/index.html
>>
>> and is under the usual spec license (which I can probably repeat by
>> heart at this point).
> 
> Ah yes, that license reads much better.
> 
>> My question though is not about this, but if it's part of the Java SE 5
>> spec and therefore would be tested w/ the Java SE 5 TCK.  I guess I can
>> go dig into the documentation around JSE 5.
>>
>> I'm guessing not, and therefore we'll need the standalone TCK for JSR 200.
> 
> It is -- there is a java.util.jar.Pack200 type in Java 5 SE, that
> references the JSR200 spec for details.
> 
> All systems go.

Indeed.  And I don't have to waste time getting the TCK either since 
it's in SE 5.

Thanks!

geir

> 
> Tim
> 

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