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https://jira.codehaus.org/browse/MNG-5064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=271652#comment-271652
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Benson Margulies commented on MNG-5064:
---------------------------------------

I just added an integration test to maven that does the right thing (doesn't 
download snapshots). It passes. 

Perhaps you could offer some additional thought as to what might be going on 
here?

> mvn -nsu (--no-snapshot-updates) should not download snapshots (and break 
> local builds)
> ---------------------------------------------------------------------------------------
>
>                 Key: MNG-5064
>                 URL: https://jira.codehaus.org/browse/MNG-5064
>             Project: Maven 2 & 3
>          Issue Type: Bug
>          Components: Command Line
>    Affects Versions: 3.0.3
>            Reporter: Geoffrey De Smet
>            Assignee: Benson Margulies
>            Priority: Critical
>
> Here's the command I ran (on a fresh morning, because our update policy is 
> daily and our SNAPSHOTs are deployed by Hudson at night, with maven 3.0.3):
> {code}
> $ mvn -nsu clean install -DskipTests
> [INFO] Scanning for projects...
> Downloading: 
> http://repository.jboss.org/nexus/content/groups/public/org/drools/droolsjbpm-parent/5.2.0-SNAPSHOT/maven-metadata.xml
> ...
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Building Drools Planner core 5.2.0-SNAPSHOT
> [INFO] 
> ------------------------------------------------------------------------
> Downloading: 
> http://repository.jboss.org/nexus/content/groups/public/org/drools/knowledge-api/5.2.0-SNAPSHOT/maven-metadata.xml
> Downloaded: 
> http://repository.jboss.org/nexus/content/groups/public/org/drools/knowledge-api/5.2.0-SNAPSHOT/maven-metadata.xml
>  (2 KB at 1.8 KB/sec)
> Downloading: 
> http://repository.jboss.org/nexus/content/groups/public/org/drools/knowledge-api/5.2.0-SNAPSHOT/knowledge-api-5.2.0-20110413.010206-9.pom
> Downloaded: 
> http://repository.jboss.org/nexus/content/groups/public/org/drools/knowledge-api/5.2.0-SNAPSHOT/knowledge-api-5.2.0-20110413.010206-9.pom
>  (6 KB at 6.0 KB/sec)
> ...
> Downloading: 
> http://repository.jboss.org/nexus/content/groups/public/org/drools/knowledge-api/5.2.0-SNAPSHOT/knowledge-api-5.2.0-20110413.010206-9.jar
> ...
> {code}
> Despite that I added "-nsu" (also known as "--no-snapshot-updates"), it 
> downloaded snapshots.
> This is a pretty bad thing, because if I hadn't pulled in days (and just 
> wanted to test my local changes before merging in remote changes),
> this would have broke my build, for example:
> - because the parent pom in downloaded SNAPSHOT had a dependency removed 
> which my local pom was still using (because I hadn't pulled the changes yet)
> - because the downloaded knowledge-api changed a non-released method 
> signature (and I hadn't pulled the changes to deal with that yet).
> - ...

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