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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2017/06/11 13:42:18 UTC
[jira] [Commented] (PDFBOX-3826) NPE if
RAFDataStream.getCurrentPosition() when TrueTypeFont created from file is
reused
[ https://issues.apache.org/jira/browse/PDFBOX-3826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045975#comment-16045975 ]
Tilman Hausherr commented on PDFBOX-3826:
-----------------------------------------
The problem is related to {{TrueTypeEmbedder.buildFontFile2()}}. That one closes the ttf member. When that one is created from a stream, a {{MemoryTTFDataStream}} is closed which does nothing; when it is created from a file, a {{RAFDataStream}} is closed.
> NPE if RAFDataStream.getCurrentPosition() when TrueTypeFont created from file is reused
> ---------------------------------------------------------------------------------------
>
> Key: PDFBOX-3826
> URL: https://issues.apache.org/jira/browse/PDFBOX-3826
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.6
> Reporter: Tilman Hausherr
> Labels: regression
>
> {code}
> java.lang.NullPointerException: null
> at org.apache.fontbox.ttf.RAFDataStream.getCurrentPosition(RAFDataStream.java:88)
> at org.apache.fontbox.ttf.TrueTypeFont.getTableBytes(TrueTypeFont.java:121)
> at org.apache.fontbox.ttf.TTFSubsetter.writeToStream(TTFSubsetter.java:1012)
> at org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder.subset(TrueTypeEmbedder.java:329)
> at org.apache.pdfbox.pdmodel.font.PDType0Font.subset(PDType0Font.java:162)
> at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1275)
> at org.apache.pdfbox.pdmodel.font.PDFontTest.testMultipleFontFileReuse(PDFontTest.java:160)
> {code}
> {code}
> @Test
> public void testMultipleFontFileReuse() throws IOException, URISyntaxException
> {
> URL url = PDFontTest.class.getClassLoader().getResource(
> "org/apache/pdfbox/ttf/LiberationSans-Regular.ttf");
> File file = new File(url.toURI());
> TrueTypeFont ttf = new TTFParser().parse(file);
> for (int i = 0; i < 32; ++i)
> {
> try (PDDocument doc = new PDDocument())
> {
> PDPage page = new PDPage();
> doc.addPage(page);
> PDFont font = PDType0Font.load(doc, ttf, true);
> try (PDPageContentStream cs = new PDPageContentStream(doc, page))
> {
> cs.beginText();
> cs.setFont(font, 10);
> cs.showText("testMultipleFontFileReuse");
> cs.endText();
> }
> doc.save(new ByteArrayOutputStream());
> }
> }
> }
> {code}
> This happens only if the TrueTypeFont is created from a file, not when it is created from a stream (PDFBOX-3337). It worked in 2.0.0 but no longer since 2.0.1.
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