Claudio Bley created MNG-5459:
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Summary: failure to resolve pom artifact from snapshotVersion in
maven-metadata.xml
Key: MNG-5459
URL: https://jira.codehaus.org/browse/MNG-5459
Project: Maven 2 & 3
Issue Type: Bug
Components: Artifacts and Repositories
Affects Versions: 3.0.5, 3.1.x
Reporter: Claudio Bley
Attachments: mvn-snapshot-resolve-fix.diff
We're using Artifactory on the server side, and ivy / sbt to publish artifacts
upstream.
After publishing several -SNAPSHOT versions of a project, trying to use it from
Maven, resulted in a warning and ultimately a build failure because it cannot
determine the dependencies:
{code}[WARNING] The POM for com.foo:bar:jar:0.4.0-20130404.093655-3 is missing,
no dependency information available{code}
This is the corresponding maven-metadata-snapshots.xml:
{code:xml}
<metadata>
<groupId>com.foo</groupId>
<artifactId>bar</artifactId>
<version>0.4.0-SNAPSHOT</version>
<versioning>
<snapshot>
<timestamp>20130404.090532</timestamp>
<buildNumber>2</buildNumber>
</snapshot>
<lastUpdated>20130404093657</lastUpdated>
<snapshotVersions>
<snapshotVersion>
<extension>pom</extension>
<value>0.4.0-20130404.090532-2</value>
<updated>20130404090532</updated>
</snapshotVersion>
<snapshotVersion>
<extension>jar</extension>
<value>0.4.0-20130404.093655-3</value>
<updated>20130404093655</updated>
</snapshotVersion>
</snapshotVersions>
</versioning>
</metadata>
{code}
As you can see, the <value> for the jar artifact and the pom artifact differ:
0.4.0-20130404.093655-3
0.4.0-20130404.090532-2
Apparently, artifactory optimizes the case when an artifact doesn't change; it
does not create a new file, but just links to the existing one.
Maven, however, takes a shortcut and makes the erroneous assumption that the
values for pom and jar artifact always match up.
The attached patch fixes this.
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