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https://issues.apache.org/jira/browse/MNG-7386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17472288#comment-17472288
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Robert Scholte commented on MNG-7386:
-------------------------------------
AFAIK creating new ArrayLists over and over again is kind of expensive. Would
be nice if it could be done once.
> ModelMerger$MergingList is not serializable
> -------------------------------------------
>
> Key: MNG-7386
> URL: https://issues.apache.org/jira/browse/MNG-7386
> Project: Maven
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.6.3, 3.8.4
> Reporter: Kostiantyn Liutovych
> Priority: Minor
>
> Hello!
> [Spotless Maven plugin|https://github.com/diffplug/spotless] serializes
> {{org.apache.maven.model.Plugin}} instances to fingerprint plugin's
> configuration. Serialization fails for Maven 3.6.3 with:
> {code}
> java.io.NotSerializableException:
> org.apache.maven.model.merge.ModelMerger$MergingList
> {code}
> when plugin configuration comes from {{pluginManagement}}. Class
> {{org.apache.maven.model.Plugin}} implements {{java.io.Serializable}},
> however nested class {{org.apache.maven.model.merge.ModelMerger$MergingList}}
> does not.
> Would it be possible to make {{MergingList}} serializable or make
> {{Plugin#dependencies}} field always hold a serializable collection?
> Related issue for the Spotless Maven plugin:
> https://github.com/diffplug/spotless/issues/1073 and PR with a workaround
> https://github.com/diffplug/spotless/pull/1074.
> Thank you!
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