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https://issues.apache.org/jira/browse/PDFBOX-2200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14211256#comment-14211256
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Tim Allison commented on PDFBOX-2200:
-------------------------------------
Perfect, thank you!
> Memory leak with org.apache.pdfbox.pdmodel.font.PDFont#cmapObjects
> ------------------------------------------------------------------
>
> Key: PDFBOX-2200
> URL: https://issues.apache.org/jira/browse/PDFBOX-2200
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 1.8.6, 2.0.0
> Reporter: Matthew Buckett
> Fix For: 2.0.0
>
>
> We use Tika to extract text from a large number (10,000+) of PDFs in a long
> running JVM, after doing this for a while we started running short of heap
> space. A heap dump shows that about 717MB of heap is retained through
> org.apache.pdfbox.pdmodel.font.PDFont#cmapObjects and the hashmap has 18001
> entries.
> PDFBOX-1009 looked to partially address this but it appears the symptons are
> still present. As a workaround I'm going to manually call
> PDFont.clearResources() after indexing each document to prevent this
> happening, but it would be better if I didn't have to.
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