Anton Smeenk created MNG-5324:
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Summary: Incorrect parsing of metadata by Maven: Cannot find
snapshot artifact with older timestamp
Key: MNG-5324
URL: https://jira.codehaus.org/browse/MNG-5324
Project: Maven 2 & 3
Issue Type: Bug
Components: Artifacts and Repositories
Affects Versions: 3.0.4
Reporter: Anton Smeenk
Maven can only retrieve an artifact from Nexus with a classifier with latest
timestamp.
Artifacts with classifiers with an older timestamp cannot be resolved.
For example. If I deploy an artifact Apple with classifier A and a bit later
deploy the same artifact with classifier B.
Next I want to retrieve the artifacts from Nexus:
For a module Banana, which needs Apple with classifier A the Artifact resolver
will fail.
For a module Strawberry, which needs Apple with classifier B the Artifact
resolver will succesfully resolve the artifact.
I found the cause for this behaviour:
With an proxy between Maven and Nexus I could see the behavour of Maven, at the
moment that I want to fetch an artifact:
First the metadata.xml is fetched from Nexus. This file does contain the
timestamp of the latest artifact in nexus and all timestamps of older
artifacts, with different classifier.
>From this metdata file Maven figures out what the correct name is for the
>artifact.
But Maven can resolve the name of classifierb, but not the name of classifierB.
The metadata is not correctly parsed! All information is there, but still Maven
can only find the artifact with the latest timestamp.
Here is an example of an metadata file:
<metadata modelVersion="1.1.0">
<groupId>com.ccv.systems.modules.gen_modem</groupId>
<artifactId>modem</artifactId>
<version>07.20.3-SNAPSHOT</version>
<versioning>
<snapshot>
<timestamp>20120809.112920</timestamp>
<buildNumber>97</buildNumber>
</snapshot>
<lastUpdated>20120809112920</lastUpdated>
<snapshotVersion>
<classifier>classsifierA</classifier>
<extension>jar</extension>
<value>07.20.3-20120809.112124-88</value>
<updated>20120809112124</updated>
</snapshotVersion>
<snapshotVersion>
<classifier>classsifierB</classifier>
<extension>jar</extension>
<value>07.20.3-20120809.112920-97</value>
<updated>20120809112920</updated>
</snapshotVersion>
</snapshotVersions>
</versioning>
</metadata>
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