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Posted to dev@pdfbox.apache.org by "John Hewson (JIRA)" <ji...@apache.org> on 2014/10/26 02:47:33 UTC
[jira] [Commented] (PDFBOX-2439) [PATCH]
ArrayIndexOutOfBoundsException in multithreaded system
[ https://issues.apache.org/jira/browse/PDFBOX-2439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14184354#comment-14184354 ]
John Hewson commented on PDFBOX-2439:
-------------------------------------
Your patch shouldn't be putting any synchronised blocks in PageDrawer. TrueTypeFont and its associated table classes are expected to be thread safe, any fix needs to go in those classes.
> [PATCH] ArrayIndexOutOfBoundsException in multithreaded system
> --------------------------------------------------------------
>
> Key: PDFBOX-2439
> URL: https://issues.apache.org/jira/browse/PDFBOX-2439
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.0
> Reporter: simon steiner
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: TestPDFBox.java, ttfparrallel.patch
>
>
> When it loads replacement font from OS i sometimes get:
> Exception in thread "Thread-27" java.lang.ArrayIndexOutOfBoundsException: 40036
> at org.apache.fontbox.ttf.GlyfSimpleDescript.readFlags(GlyfSimpleDescript.java:197)
> at org.apache.fontbox.ttf.GlyfSimpleDescript.<init>(GlyfSimpleDescript.java:78)
> at org.apache.fontbox.ttf.GlyphData.initData(GlyphData.java:58)
> at org.apache.fontbox.ttf.GlyphTable.getGlyph(GlyphTable.java:161)
> at org.apache.pdfbox.rendering.font.TTFGlyph2D.getPathForGID(TTFGlyph2D.java:140)
> at org.apache.pdfbox.rendering.font.TTFGlyph2D.getPathForCharacterCode(TTFGlyph2D.java:92)
> at org.apache.pdfbox.rendering.PageDrawer.drawGlyph2D(PageDrawer.java:392)
> at org.apache.pdfbox.rendering.PageDrawer.showGlyph(PageDrawer.java:372)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.showText(PDFStreamEngine.java:411)
> at org.apache.pdfbox.rendering.PageDrawer.showText(PageDrawer.java:346)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.showTextStrings(PDFStreamEngine.java:322)
> at org.apache.pdfbox.contentstream.operator.text.ShowTextAdjusted.process(ShowTextAdjusted.java:38)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:482)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processSubStream(PDFStreamEngine.java:236)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processSubStream(PDFStreamEngine.java:201)
> at org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:155)
> at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:177)
> at org.apache.pdfbox.rendering.PDFRenderer.renderPage(PDFRenderer.java:228)
> at org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:160)
> at org.apache.pdfbox.rendering.PDFRenderer.renderImageWithDPI(PDFRenderer.java:109)
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