readDirectory method in TiffReader doesn't gracefully handle exceptions that
can be thrown from readbytes methods.
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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
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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