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https://issues.apache.org/jira/browse/PDFBOX-2999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andreas Lehmkühler closed PDFBOX-2999.
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Resolution: Fixed
I've closed this ticket, as there wasn't that much progress in the last years.
Most of the discussed points are obsolete as PDFBox doesn't use scratch files
for reading anymore.
> Optimize COSStream scratch file usage
> -------------------------------------
>
> Key: PDFBOX-2999
> URL: https://issues.apache.org/jira/browse/PDFBOX-2999
> Project: PDFBox
> Issue Type: Improvement
> Components: PDModel
> Affects Versions: 2.0.0
> Reporter: Timo Boehme
> Assignee: Andreas Lehmkühler
> Priority: Major
>
> The usage of scratch file buffers in COSStreams is quite sloppy. A never
> filled buffer is created in the beginning and existing buffers are discarded
> without being closed when a variant of {{createOutputStream}} is called.
> Furthermore it should be clarified if requesting an input stream without
> having created an output stream before is ok and if a returned input stream
> keeps valid after a new output stream is created (which is crucial for proper
> buffer-closing).
> This issue should resolve some of the shortcomings and document the expected
> or even required usage of COSStream.
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