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From Dennis Lundberg <>
Subject Re: Maven 2 (WAS: [VOTE] commons-fileupload 1.2 (rc2))
Date Wed, 07 Feb 2007 20:39:22 GMT
Jörg Schaible wrote:
> Hi Dennis,
> Dennis Lundberg wrote:
>> Henri Yandell wrote:
>>> On 2/5/07, Jörg Schaible <> wrote:
>>>> Hi Jochen,
>>>> Jochen Wiedmann wrote on Monday, February 05, 2007 9:03 AM:
>>>>>> I'm thinking:
>>>>>> * Change group id?
>>>>> Couldn't we do that *after* the release, please? I would clearly
>>>>> prefer *not* to introduce any incompatible changes in that stage.
>>>> +1
>>>> from my personal experience with a different project all I can say is
>>>> that changing the groupId is
>>>> a task that is not very well supported by M2. The available docs are
>>>> spare, do not work as they
>>>> are described or are out of date. So changing the groupId is a task
>>>> that should be done for a
>>>> reference project that volunteers to go through all the hassle with a
>>>> direct helping hand from
>>>> some Maven folks.
>> I put together this document when I was trying to pull through the whole
>> groupId change last time:
>> There is never a good time to change the groupId. My view is that we
>> should do it when we move to M2, both as a build tool and as the target
>> repository.
> Yes, I tried to use this description for a M1 -> M2 situation. In the end
> Carlos' advice was to ignore all the old versions and simply start with the
> new M2 releases also to use the new groupId and add for those releases only
> a relocation POM.

That is a much easier way to do it. I'm starting to think that this is 
the way to go for Commons. Just change the groupId when we release with 
M2 and don't relocate older versions.

> The problem with adjusting the old releases is, that the
> location for the relocation POMs is already occupied by the automatically
> generated POMs for M2 on the global M2 repo (see
> And since they're already published, they cannot be changed anymore.

I think you are allowed to add a relocation section to an already 
published pom. I vaguely remember discussing this with Carlos back then.

> [snip]
> - Jörg

Dennis Lundberg

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