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From Ralph Goers <>
Subject Re: [RT] Micro kernel based Cocoon
Date Fri, 20 May 2005 15:31:43 GMT
Daniel Fagerstrom wrote:

> OSGi specification is currently at its 3rd release. It is used as 
> kernel for Eclipse (since 3.0), each plugin is a bundle. It is used 
> for embeded applications e.g. BMWs 5 series, mobile phones etc.
> There are 12 compliant implementations and at least 3 with "friendly" 
> licenses: the Eclipse kernel [4] (release 3+), Knoplerfish [5] 
> (release 3), Oscar [6] (release 3-). There is also a bundle repository 
> [7]. The Eclipse OSGi contain some extra functionallity that probably 
> will be part of OSGi release 4. Knoplerfish is more lightweight and 
> has a minimal framework distribution at only 200kB.
After looking at the website I have to wonder why I've never run across 
this before.  I could have used this a year and a half ago.

My 2 cents.

While the overview that the website provides looks great I can't really 
comment on the details until I get a chance to review the spec or API 
docs.  However, should we go this route I have to make clear what I 
consider the number one essential requirement:  the implementation must 
come from a stable community.  In that regard I certainly wouldn't 
hesitate to leverage something that is part of Eclipse.  If another 
implementation is preferable for technical reasons it would have to be 
shown that a) it has a sufficient user and developer community to 
survive, or b) it can somehow be moved to Apache and be maintained by us 
(not necessarily preferrable or a solution - Avalon was at Apache).


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