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From Claves Do Amaral <Claves.DoAma...@iggroup.com>
Subject Classifiers and build number
Date Wed, 04 May 2011 08:11:50 GMT
Good morning,

I have some problems using artefacts deployed with classifiers. The version of Maven I am
using is 3.0.2

We add the classifiers (jacorb) and (sunorb) to our CORBA artefacts, such that the classifier
name is added to the jar version i.e "corba-client-base-2.3-SNAPSHOT-jacorb.jar" or "corba-client-base-2.3-SNAPSHOT-sunorb.jar"

These are then translated into our (Nexus) repository with the timestamp plus consecutive
build number, i.e. "corba-client-base-2.3-20110427.092455-43-jacorb.jar" and "corba-client-base-2.3-20110427.092455-44-sunorb.jar".

You will notice the timestamp is the same for the time stamp but the build number is different
for the artefacts, that are built by different plans on Bamboo.

The metadata for this version is

<metadata>
<groupId>uk.co.igindex.corba</groupId>
<artifactId>corba-client-base</artifactId>
<version>2.3-SNAPSHOT</version>
<versioning>
<snapshot>
<timestamp>20110427.092455</timestamp>
<buildNumber>44</buildNumber>
</snapshot>
<lastUpdated>20110429052440</lastUpdated>
</versioning>
</metadata>

When I build a project that depends on "corba-client-base" I get the following error:

Downloaded: http://xxxxxxxxxxxxxxxxxxxxxx:8081/nexus/content/repositories/ig.snapshot/uk/co/igindex/corba/derived-corba-client-parent/2.3-SNAPSHOT/maven-metadata.xml
(621 B at 37.9 KB/sec)
Downloading: http://xxxxxxxxxxxxxxxxxxxx:8081/nexus/content/repositories/ig.snapshot/uk/co/igindex/corba/corba-client-base/2.3-SNAPSHOT/corba-client-base-2.3-20110427.092455-44-jacorb.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.528s
[INFO] Finished at: Tue May 03 11:19:37 BST 2011
[INFO] Final Memory: 11M/605M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project xcon-data-factory: Could not resolve dependencies
for project uk.co.igindex.corba.xds:xcon-data-factory:jar:1.4-SNAPSHOT: Could not find artifact
uk.co.igindex.corba:corba-client-base:jar:jacorb:2.3-20110427.092455-44 in xxxxxxxxxxxxxx
(http://xxxxxxxxxxxxxxxx:8081/nexus/content/repositories/ig.snapshot) -> [Help 1]

I can understand this error is due to the mismatch of the build number returned by the metadata,
because the <buildNumber> value does not reflect the actual artefact build number.

My question is: how can I solve this? How can I tell the correct build number for different
classifiers? Is it possible to tell Maven to use the same build number for both build, or
at least to use some custom number? In fact, if the timestamp is the same for both artefact,
why is not the build number?

I have tried the <uniqueVersion> but it does not solve all the issues, makes the pom
cumbersome, I read somewhere that is deprecated and ultimately I don't like it, because I
want to keep the multiple version mechanism for my artefacts.
I have tried the buildnumber-maven-plugin, but it looks this generates a build number that
does not have any effect on the deployment build number.

I tried many customisation options on the maven-deploy-plugin but none of these solved my
issue.

If anyone can help, this would be much appreciated.

Thanks,


Claves do Amaral


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