Anything that goes to Central is immutable .. so no edits or updates or 
whatever. Make sure you keep that in mind 

Manfred



Jonathan Valliere wrote on 2020-02-20 09:50 (GMT -08:00):

> Just indicate a date in the pom at which point the relocation warning turns
> into a relocation error. <expires>date</>. So you warn for a year then you
> keep it up on central for an additional year in which it throws errors but
> indicates to the redirection information.
> 
> On Thu, Feb 20, 2020 at 2:55 AM Hervé BOUTEMY <herve.bout...@free.fr> wrote:
> 
>> +1
>>
>> probably will start by improving the documentation, because this is really
>> the
>> current intent from what I can understand: a relocation pom only provides
>> relocation info only, no jar, no build info
>>
>> like https://repo.maven.apache.org/maven2/ant/ant/1.7.0/ that points to
>> https://repo.maven.apache.org/maven2/org/apache/ant/ant/1.7.0/
>>
>> AFAIK, there is no modification expected on existing artifacts, just
>> relocation
>> poms to create at old coordinates to point new coordinates = the new
>> canonical
>> coordinates
>>
>>
>> then perhaps the way it is implemented can be improved: one issue I can
>> see
>> (from a pure theoretical point of view, I didn't take time to make
>> extensive
>> tests) is to define when you stop publishing relocation poms at old
>> coordinates, ie. starting with which version?
>> and how to be sure that the relocation is detected when resolving both old
>> coordinates and new coordinates that are both canonical coordinates?
>>
>> for example ant:ant:1.6.5 (= canonical coordinates for this release) and
>> org.apache.ant:ant:1.8.0 (= canonical coordinates for this release), given
>> there is no relocation pom published for ant:ant:1.8.0, only for
>> ant:ant:1.7.0
>>
>> Regards,
>>
>> Hervé
>>
>> Le mercredi 19 février 2020, 16:48:38 CET Jonathan Valliere a écrit :
>> > Maybe we need to rework how this functionality works.  It should be
>> > essentially a symlink with a warning message within the resolver so they
>> > both resolve to the same artifact.
>> >
>> > On Wed, Feb 19, 2020 at 8:58 AM Anders Hammar <and...@hammar.net> wrote:
>> > > In real practice it doesn't work well though, as someone already
>> brought
>> > > up. It can result in duplication of libraries on the class path (the
>> same
>> > > library under different groupId).
>> > >
>> > > /Anders (mobile)
>> > >
>> > > Den ons 19 feb. 2020 14:52Elliotte Rusty Harold <elh...@ibiblio.org>
>> > >
>> > > skrev:
>> > > > I set up some simple projects and tested this manually. As best I can
>> > > > determine, relocation does work as one would hope, at least in Maven
>> > > > and M2E. (No idea about Gradle or Ivy.)
>> > > >
>> > > > The documentation should probably be rewritten because it assumes you
>> > > > can change published pom.xml files, which isn't true on Maven
>> central.
>> > > >
>> > > > On Mon, Feb 17, 2020 at 3:36 PM Hervé BOUTEMY <herve.bout...@free.fr
>> >
>> > > >
>> > > > wrote:
>> > > > > you can test with
>> > > > > https://repo.maven.apache.org/maven2/ant/ant/1.7.0/ant-1.7.0.pom
>> > >
>> > >
>> https://repo.maven.apache.org/maven2/javax/xml/jaxrpc/1.1/jaxrpc-1.1.pom
>> > >
>> > >
>> > >
>> https://repo.maven.apache.org/maven2/javax/xml/jaxb-api/1.0.1/jaxb-api-1.0
>> > > .1.pom>
>> > > > > testing relocation was on my todo list for years, but I never
>> really
>> > >
>> > > test
>> > >
>> > > > > Regards,
>> > > > >
>> > > > > Hervé
>> > > > >
>> > > > > Le dimanche 16 février 2020, 15:18:17 CET Elliotte Rusty Harold a
>> > >
>> > > écrit :
>> > > > > > On Sun, Feb 16, 2020 at 2:35 AM <herve.bout...@free.fr> wrote:
>> > > > > > > see:
>> > > > > > > -
>> > >
>> > >
>> http://maven.apache.org/ref/3.6.3/maven-model/maven.html#class_relocation
>> > >
>> > > > > > > - https://maven.apache.org/guides/mini/guide-relocation.html
>> > > > > >
>> > > > > > The guide to relocation seems to assume a lot more access and
>> > > > > > control
>> > > > > > to the repo than is the case with public repositories like Maven
>> > > > > > Central. I'm not sure it's actually possible to follow these
>> steps
>> > > > > > today, though perhaps that could be changed.
>> > > > > >
>> > > > > > I'd still like to see the code in the repo that implements
>> support
>> > >
>> > > for
>> > >
>> > > > > > this or, better yet, a sample project that demonstrates
>> relocation
>> > > > > > is
>> > > > > > possible.
>> > > > > >
>> > > > > > If this does work, I can see a lot of use cases for it, but I'm
>> > > > > > currently working with the assumption it is not.
>> > > > >
>> > > > >
>> ---------------------------------------------------------------------
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>> > > >
>> > > > --
>> > > > Elliotte Rusty Harold
>> > > > elh...@ibiblio.org
>> > > >
>> > > > ---------------------------------------------------------------------
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>>
>>
>>
>>
>>
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