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Posted to issues@commons.apache.org by "Gary D. Gregory (Jira)" <ji...@apache.org> on 2021/02/17 20:04:00 UTC

[jira] [Resolved] (IO-597) FileUtils.iterateFiles goes out of memory when executed for a directory with large number of files

     [ https://issues.apache.org/jira/browse/IO-597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary D. Gregory resolved IO-597.
--------------------------------
    Fix Version/s: 2.9.0
       Resolution: Fixed

> FileUtils.iterateFiles goes out of memory when executed for a directory with large number of files
> --------------------------------------------------------------------------------------------------
>
>                 Key: IO-597
>                 URL: https://issues.apache.org/jira/browse/IO-597
>             Project: Commons IO
>          Issue Type: Bug
>          Components: Utilities
>            Reporter: Arvind
>            Priority: Major
>             Fix For: 2.9.0
>
>
> FileUtils.iterateFiles goes out of memory when executed for a directory with large number of files because it uses the listFiles method which returns an array of java.io.File objects. The iterator itself should not be derived from a list but from a Java Stream which will have lesser memory footprint. This feature however can be used only with Java 8 or later because streams were introduced only in Java 8.



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