Hi. Nothing like that. I'm reproducing this in single-threaded code.
I'll see if I can reduce the process to something simple, since the current situation involves a 206-page document. Constantine -- There is a computer disease that anybody who works with computers knows about. It's a very serious disease and it interferes completely with the work. The trouble with computers is that you 'play' with them! - Richard P. Feynman On Tue, Oct 21, 2025 at 7:37 AM Andreas Lehmkühler <[email protected]> wrote: > Hi, > > sounds like a concurrency issue. What exactly are you doing? Maybe > something with multiple threads working with the same document? > > Andreas > > Am 20.10.25 um 17:41 schrieb Constantine Dokolas: > > Hi there! > > > > I keep getting this exception when subsetting NotoSansDevanagari-Regular > > with PDFBox 3.0.5: > > > > Exception in thread "main" java.util.ConcurrentModificationException > >> at > >> > java.base/java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1486) > >> at java.base/java.util.TreeMap$KeyIterator.next(TreeMap.java:1540) > >> at > >> > org.apache.fontbox.ttf.TTFSubsetter.buildGlyfTable(TTFSubsetter.java:617) > >> at > >> > org.apache.fontbox.ttf.TTFSubsetter.writeToStream(TTFSubsetter.java:1030) > >> at > >> > org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder.subset(TrueTypeEmbedder.java:346) > >> at > >> org.apache.pdfbox.pdmodel.font.PDType0Font.subset(PDType0Font.java:304) > >> at > >> > org.apache.pdfbox.pdmodel.PDDocument.subsetDesignatedFonts(PDDocument.java:1064) > >> at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1052) > > > > > > Could this be related to PDFBOX-5918 > > <https://issues.apache.org/jira/browse/PDFBOX-5918>? > > > > Thanks in advance, > > Constantine > > > > -- > > There is a computer disease that anybody who works with computers knows > > about. It's a very serious disease and it interferes completely with the > > work. The trouble with computers is that you 'play' with them! > > - Richard P. Feynman > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
