Using Maven-3 Got Http 409 error when re-deploy wi

I am deploying jar file to maven repository (archiva)

pom.xml :

<distributionManagement>
  <repository>      
    <id>archiva.internal</id>
    <uniqueVersion>false</uniqueVersion>
    <name>Internal Release Repository</name>
    <url>http://server:8080/archiva/repository/internal</url>
  </repository>
  <snapshotRepository>
    <id>archiva.snapshots</id>
    <uniqueVersion>false</uniqueVersion>
    <name>Internal Snapshot Repository</name>
    <url>http://server:8080/archiva/repository/internal/snapshots</url>
  </snapshotRepository>
</distributionManagement>

settings.xml:

<servers>
    <server>
        <id>archiva.internal</id>
        <username>user</username>
        <password>password</password>
        <filePermissions>664</filePermissions>
        <directoryPermissions>775</directoryPermissions>
    </server>
    <server>
        <id>archiva.snapshots</id>
        <username>user</username>
        <password>password</password>
        <filePermissions>664</filePermissions>
        <directoryPermissions>775</directoryPermissions>
    </server>

</servers>

First maven deploy is success,

Uploading: http://server:8080/archiva/repository/internal/com/test/maven-metadata.xml
Uploaded: http://server:8080/archiva/repository/internal/com/test/maven-metadata.xml (306 B at 2.4 KB/sec)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.843s
[INFO] Finished at: Mon Nov 07 17:09:49 EST 2011
[INFO] Final Memory: 5M/11M

If I try to redeploy the same artifact I get:

Failed to transfer file: http://server:8080/archiva/repository/internal/com/test.jar. Return code is: 409 -> [Help 1]

Is it possible to redeploy the same artifact with the same version, or do I have to manually delete the artifact from archive prior to re-deploy?

As an administrator, go to the repositories page and edit the managed repository internal - there you can uncheck Block Re-deployment of Released Artifacts.

However, I wouldn't recommend it in general. Once something is there, it can be downloaded. Once it is downloaded, it can be cached by Maven. If you change it, you won't know that the "real" release is being used everywhere.

Version numbers are cheap - it's better to use a new one.