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https://issues.apache.org/jira/browse/MNG-7293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17426567#comment-17426567
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lujie commented on MNG-7293:
----------------------------
https://github.com/apache/maven/pull/574
> Resource Leak due to Files.walk
> -------------------------------
>
> Key: MNG-7293
> URL: https://issues.apache.org/jira/browse/MNG-7293
> Project: Maven
> Issue Type: Improvement
> Reporter: lujie
> Priority: Major
>
> see
> [https://github.com/apache/maven/blob/d75bea415457b2eba7815bb9c3e9cd4e14b47fce/maven-wrapper/src/main/java/org/apache/maven/wrapper/Installer.java#L143]
>
> Stream creates by File.walk should be closed, like jdk said:
> * <p> The returned stream encapsulates one or more \{@link DirectoryStream}s.
> * If timely disposal of file system resources is required, the
> * \{@code try}-with-resources construct should be used to ensure that the
> * stream's \{@link Stream#close close} method is invoked after the stream
> * operations are completed. Operating on a closed stream will result in an
> * \{@link java.lang.IllegalStateException}.
>
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