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Date: Tue, 20 Dec 2011 10:45:30 +0000 (UTC)
From: "Emmanuel Bourg (Updated) (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
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Subject: [jira] [Updated] (SANSELAN-47) readDirectory method in TiffReader
 doesn't gracefully handle exceptions that can be thrown from ByteSource
 implementations
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     [ https://issues.apache.org/jira/browse/SANSELAN-47?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Emmanuel Bourg updated SANSELAN-47:
-----------------------------------

    Fix Version/s: 1.0
    
> readDirectory method in TiffReader doesn't gracefully handle exceptions that can be thrown from ByteSource implementations
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SANSELAN-47
>                 URL: https://issues.apache.org/jira/browse/SANSELAN-47
>             Project: Commons Sanselan
>          Issue Type: Improvement
>         Environment: ubuntu 8.0.4 java 1.6.0_11
>            Reporter: Gunduz Can Topal
>             Fix For: 1.0
>
>         Attachments: ExifReadOverflow.jpg
>
>
> In case of a corrupt or faulty exif header, we should keep the well formed ones instead of propagating an IOException or an OutofMemory Error to the caller. Attached is a picture taken from an HTC handset, with a faulty exif thumbnail offset, causing an OutOfMemoryException. the patch in SANSELAN-17 turns it into an IOException and the good fields are still being lost.
> i.e we should have the following data instead of an exception
> Exif metadata:
> Root: 
>  Modify Date: '2010:10:05 22:51:03'
>  Model: 'HTC Desire'
>  Orientation: 0
>  Unknown Tag (0x9209): 65535
>  Unknown Tag (0x9208): 0
>  Unknown Tag (0x9004): '2010:10:05 22:51:03'
>  Unknown Tag (0x9207): 65535
>  Unknown Tag (0xa403): 65535
>  Image Height: 1552
>  Image Width: 2592
>  Make: 'HTC'
>  Exif Offset: 222
>  Unknown Tag (0xde): null
>  Exif:  (jpegImageData)
>  Preview Image Start: 252
>  Preview Image Length: 0

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