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Message-ID: <94d710af0809111949m239b7279o5b002f1c0fcf45a7@mail.gmail.com>
Date: Fri, 12 Sep 2008 10:49:25 +0800
From: "Sean Qiu" <sean.xx.qiu@gmail.com>
To: dev@harmony.apache.org
Subject: Re: harmony class libs and GNU Classpath
In-Reply-To: <48C9D047.8080901@cisco.com>
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References: <48C9D047.8080901@cisco.com>

2008/9/12 Anders Kristensen <andersk@cisco.com>:
> Hi,
>
> I'm new to the Harmony project and was wondering about the relationship
> between Harmony and the GNU Classpath project, e.g.:
>  - How much (if anything) of the Harmony class libraries come from the GNU
> Classpath project?

None,  Harmony is delivered with Apache License V2 [1], while GNU
Classpath is delivered with GPL.
These two licenses are incompatible, so they can't adopt each other's
code at all.

>  - Do the two efforts continue in parallel or is one emerging as being more
> likely to flourish and attract future development?

I don't familiar with GNU Classpath, but I know Harmony gradually
becomes mature.
Harmony has clear high level roadmap and detailed close goals [2].
Harmony has a active community which comprises of active committers
and contributors [3].

>  - If they're both active, which one is more complete?

You can get the api diff from here[4], though the data may be out-of-data.
Harmony has been improved quite a lot during this period.

What's more, Harmony has a virtual machine implementation as well
which is called DRLVM [5].
And Harmony classlib could be integrated with IBM VM or  Jrockit VM.


Correct me if I am wrong :)

>
> Thanks,
> Anders
>

[1] http://harmony.apache.org/license.html
[2] http://harmony.apache.org/roadmap.html
[3] http://harmony.apache.org/contributors.html
[4] http://www.kaffe.org/~stuart/japi/htmlout/
[5] http://harmony.apache.org/subcomponents/drlvm/index.html
-- 
Best Regards
Sean, Xiao Xia Qiu

China Software Development Lab, IBM