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https://issues.apache.org/jira/browse/PDFBOX-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16535860#comment-16535860
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Tilman Hausherr commented on PDFBOX-4260:
-----------------------------------------
Thank you for your patch! However… TestPDPageContentStream fails:
{noformat}
testSetCmykColors(org.apache.pdfbox.pdmodel.TestPDPageContentStream) Time
elapsed: 0.233 s <<< ERROR!
java.io.IOException: Buffer already closed
at
org.apache.pdfbox.pdmodel.TestPDPageContentStream.testSetCmykColors(TestPDPageContentStream.java:44){noformat}
This is because in that test, the content stream is closed twice. This was
missed in refactoring and I'll delete that line later and add a real test
instead, but it shows that you're not respecting the {{Closeable.close()}}
contract.
An improvement/simplifcation wish: you can also make the assumption that
{{scratchfile}} constructor parameter is never null (the only usage is in
{{COSStream.createOutputStream()}} and it is never null there), this would
simplify (y)our code, please correct the javadoc when resubmitting.
{{COSOutputStream}} is package-local so it can be changed without breaking the
public API.
> Reduce RAM requirement of COSOutputStream
> -----------------------------------------
>
> Key: PDFBOX-4260
> URL: https://issues.apache.org/jira/browse/PDFBOX-4260
> Project: PDFBox
> Issue Type: Improvement
> Components: Writing
> Affects Versions: 2.0.11
> Reporter: Jesse Long
> Priority: Minor
> Fix For: 2.0.12, 3.0.0 PDFBox
>
> Attachments: pdfbox-cosstream.patch
>
>
> COSOutputStream uses a byte array to buffer data prior to filtering. This is
> bad. As commented in COSOutputStream, it should be updated to use a scratch
> file buffer instead.
> This patch does that.
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