[IMAGING-282] NullPointerException in org.apache.commons.imaging.formats.gif.GifImageParser.getMetadata() when GraphicControlExtension is null - ASF JIRA

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Details

Type: Bug
Status: Open
Priority: Minor
Resolution: Unresolved
Affects Version/s: 1.0-alpha2
Fix Version/s: 1.0.0-alpha6
Component/s: Format: GIF
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Description

The attached gif file produces a NullPointerException in org.apache.commons.imaging.formats.gif.GifImageParser.getMetadata() l553 due to variable id not having a GraphicControlExtension component (id.gce = null).

This is set to null in findAllImageData l715.

Elsewhere in org.apache.commons.imaging.formats.gif.GifImageParser is tested for null (l746).

This gif seems to contain incorrect metadata. Simply re-saving it with ImageMagick correct the issue but since the gif is correctly displayed by all viewers at my disposal it would seem that org.apache.commons.imaging needs to be more permissive.