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From "Shinya Nishinaka (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (FILEUPLOAD-189) DiskFileItemFactory use of FileCleaningTracker is documated or coded wrong
Date Thu, 29 Nov 2012 10:54:59 GMT

    [ https://issues.apache.org/jira/browse/FILEUPLOAD-189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13506382#comment-13506382
] 

Shinya Nishinaka edited comment on FILEUPLOAD-189 at 11/29/12 10:54 AM:
------------------------------------------------------------------------

I think this issue Critical , too.

If the lifecycle of DiskFileItemFactory object is shorter than DiskFileItem, There is a possibility
that the temporary files are deleted before DiskFileItem#get() is called.
This causes upload files will be lost.
                
      was (Author: nishinaka):
    I think this issue Critical , too.

If the lifecycle of DiskFileItemFactory object is shorter than DiskFileItem, There is a possibility
that the temporary files are deleted before DiskFileItem#getInputStream() is called.
This causes upload files will be lost.
                  
> DiskFileItemFactory use of FileCleaningTracker is documated or coded wrong
> --------------------------------------------------------------------------
>
>                 Key: FILEUPLOAD-189
>                 URL: https://issues.apache.org/jira/browse/FILEUPLOAD-189
>             Project: Commons FileUpload
>          Issue Type: Bug
>            Reporter: Gregor K
>            Priority: Minor
>         Attachments: FILEUPLOAD-189.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Regarding latest SVN revision:
> The DiskFileItemFactory documents:
> Temporary files are automatically deleted as soon as they are no longer needed. (More
precisely, when the corresponding instance of {@link java.io.File} is garbage collected.)
> But the code in DiskFileItemFactory.createItem() is doing:
> tracker.track(result.getTempFile(), this);
> Which means the file is cleaned when DiskFileItemFactory is garbage collected.
> This error is propably introduced in Rev 578253 when the code was moved from DiskFileItem
to DiskFileItemFactory, without changing "this" (which was DiskFileItem) and is not DiskFileItemFactory.

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