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http://jira.codehaus.org/browse/MNG-4041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Igor Fedorenko updated MNG-4041:
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Attachment: MNG-4041-c.diff
Attached MNG-4041-c.diff patch fixes couple of problems in the original
implementation
* Plugin CacheKey equals method considers repositories now (thank you for
spotting this, Benjamin).
* Plugins that differ only in <executions/> use the same plugin realm.
> embedder returns stale maven project state
> ------------------------------------------
>
> Key: MNG-4041
> URL: http://jira.codehaus.org/browse/MNG-4041
> Project: Maven 2
> Issue Type: Bug
> Components: Embedding
> Affects Versions: 3.0-alpha-2
> Reporter: Igor Fedorenko
> Fix For: 3.0-alpha-3
>
> Attachments: MNG-4041-c.diff, MNG-4041.diff, staleproject.zip
>
>
> Embedder returns stale maven project state after project's pom.xml changed
> and re-read. This is extremely common scenario when using embedder in IDE
> like m2e. See attached sample project that demonstrates one of many possible
> ways to trigger this problem.
> The problem appears to be related to static (!) MavenProject cache in
> DefaultMavenProjectBuilder, which means that even recreating embedder
> instance is not going to purge state cache entries.
> Also note that using artifact#getId does not provide enough context to
> uniquely identify cached MavenProject instances. This is particularly true
> for IDEs where the same embedder instance is likely to be used to process
> unrelated projects. Cached MavenProject instances should be identified at
> least by the following attributes
> * project artifact id
> * values of all properties
> * all active profiles
> * content of all pom.xml files directly and indirectly involved in
> construction of maven project instance
> * IDE specific state, like m2e "enable workspace dependency resolution"
> * likely more...
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