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https://issues.apache.org/jira/browse/TIKA-809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13167324#comment-13167324
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Nick Burch commented on TIKA-809:
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This should be improved when we move to POI 3.8 beta 5, as that has improved
image detection logic. Does need fixing though, will look at that shortly
> IndexOutOfBoundsException with TikaGUI
> --------------------------------------
>
> Key: TIKA-809
> URL: https://issues.apache.org/jira/browse/TIKA-809
> Project: Tika
> Issue Type: Bug
> Components: gui
> Affects Versions: 1.1
> Environment: Windows 7
> Reporter: John Mastarone
> Attachments: TIKA-809.patch, test.doc
>
>
> From issue Tika-410: the issue's attached test document, "test.doc", causes
> an IndexOutOfBoundsException when dropped into a latest build of the tika-app
> GUI. The reason is that the org.apache.poi.hwpf.usermodel.Picture class's
> suggestFileExtension() method, used by Tika's WordExtractor class, can return
> an empty string. The requestSave method of the ImageSavingParser inner class
> (of TikaGUI) is not written to handle the case of an image having no
> extension.
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