1. "Deploy artifacts to Maven Repository" / "Assign unique versions to snapshots"

>> SNIP
channel stopped
Deploying artifacts to http://localhost:8080/nexus/content/repositories/internal-snapshots
Hauptartefakt DepTest-1.0.0-SNAPSHOT.jar wird ausgebracht (deploy)
[INFO ] Retrieving previous build number from internal-snapshots
[INFO ] repository metadata for: 'snapshot test:DepTest:1.0.0-SNAPSHOT' could not be found on repository: internal-snapshots, so will be created
[INFO ] Retrieving previous metadata from internal-snapshots
[INFO ] repository metadata for: 'snapshot test:DepTest:1.0.0-SNAPSHOT' could not be found on repository: internal-snapshots, so will be created
[INFO ] Uploading repository metadata for: 'snapshot test:DepTest:1.0.0-SNAPSHOT'
[INFO ] Uploading project information for DepTest 1.0.0-20101104.103909-1
[INFO ] Retrieving previous metadata from internal-snapshots
[INFO ] repository metadata for: 'artifact test:DepTest' could not be found on repository: internal-snapshots, so will be created
[INFO ] Uploading repository metadata for: 'artifact test:DepTest'
Verknüpfte Artefakte DepTest-1.0.0-SNAPSHOT-sources.jar werden ausgebracht (deploy)
[INFO ] Retrieving previous build number from internal-snapshots
[INFO ] Retrieving previous metadata from internal-snapshots
[INFO ] Uploading repository metadata for: 'snapshot test:DepTest:1.0.0-SNAPSHOT'
[INFO ] Retrieving previous metadata from internal-snapshots
[INFO ] Uploading repository metadata for: 'artifact test:DepTest'
Finished: SUCCESS

<< SNAP

=> deployprob_1.png
=> Artifact JAR + Source JAR is deployed !!!

2. Repository becomes inconsistent
=> deployprob_2.png
=> maven-metadata.xml

Result: SNAPSHOT-ARTIFACT CANNOT BE REFERENCED !!!

Reason: Artifact JAR + Source classifier Artifact are handled separately. Therefore the sequential buildnumber in increased seperately and the artifact JAR can not be referenced !

Please note:
=> This will be a problem for any type of classifiers
=> Not to check the "Assign unique versions to snapshots" (default value !!!) leads to another problem: Exactly ONE snapshot version is maintained in the repository (because no timestamp version is deployed).