[jira] [Closed] (MNG-7316) REGRESSION: MavenProject.getAttachedArtifacts() is read-only

["Michael Osipov (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MNG-7316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Osipov closed MNG-7316.
-------------------------------
    Resolution: Fixed

This has been implicitly addressed by MNG-7636 for the 3.x line. [~chtompki], still owes me an explanation why he attaches and then detaches the same artifacts. [~laeubi], though I do not fully understand your usecase, I think it is justified. Feel free to raise a new ticket to improve the {{MavenProjectHelper}}.

> REGRESSION: MavenProject.getAttachedArtifacts() is read-only
> ------------------------------------------------------------
>
>                 Key: MNG-7316
>                 URL: https://issues.apache.org/jira/browse/MNG-7316
>             Project: Maven
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 3.8.2, 3.8.3
>            Reporter: Gary D. Gregory
>            Assignee: Michael Osipov
>            Priority: Critical
>             Fix For: 3.9.0, 3.8.7
>
>
> The method {{MavenProject.getAttachedArtifacts()}} as of 3.8.2 breaks releasing components for us at Apache Commons using our Maven Release plugin because the list returned is now immutable, we now get an exception when calling {{remove()}} on the collection returned by the API; see [https://github.com/apache/commons-release-plugin/blob/master/src/main/java/org/apache/commons/release/plugin/mojos/CommonsDistributionDetachmentMojo.java#L137]
> This worked fine in 3.8.1, may you please change it back for 3.8.4?
> We cannot use Maven 3.8.2 and 3.8.3 to release our components.
> ([~michael-o]: Ironically, I discovered this trying to create a release candidate for Apache Commons CLI.)
> The exception in 3.8.3:
> {quote}Caused by: java.lang.UnsupportedOperationException
>  at java.util.Collections$UnmodifiableCollection.remove (Collections.java:1060)
>  at org.apache.commons.release.plugin.mojos.CommonsDistributionDetachmentMojo.execute (CommonsDistributionDetachmentMojo.java:136)
>  at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
> {quote}
>  



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