I have a client application that convert pdf documents into single page tiff
images. Since the user export large quantities of documents I use a
multithreaded approach. Each thread loads it own document and converts the
pages one by one.
The pdf file is serialized to the client thread and then each thread executes
the following code. If I only use 1 thread there is no problem. I checked to
make sure objects are shared between threads.
docin = PDDocument.load(new
ByteArrayInputStream(documentResult.getImage().getContent()),true);
if(null==docin)
throw new Exception("Invalid PDF document or an occured during
retrieval");
int numPages = docin.getNumberOfPages();
String strPath = getPath(numPages);
int iPage = 0;
PDFRenderer renderer = new PDFRenderer(docin);
for (int i=0;i<numPages;i++)
{
PDPage page = docin.getPage(i);
PDRectangle rect = page.getMediaBox();
BufferedImage pageImage = null;
pageImage = renderer.renderImageWithDPI(i, 200f,
ImageType.BINARY);
...
}
Array index out of range: 8
at
org.apache.fontbox.ttf.GlyfSimpleDescript.readFlags(GlyfSimpleDescript.java:202)
at
org.apache.fontbox.ttf.GlyfSimpleDescript.<init>(GlyfSimpleDescript.java:77)
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.TTFGlyph2D.getPathForGID(TTFGlyph2D.java:140)
at
org.apache.pdfbox.rendering.TTFGlyph2D.getPathForCharacterCode(TTFGlyph2D.java:92)
at
org.apache.pdfbox.rendering.PageDrawer.drawGlyph2D(PageDrawer.java:333)
at
org.apache.pdfbox.rendering.PageDrawer.showFontGlyph(PageDrawer.java:314)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.showGlyph(PDFStreamEngine.java:731)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.showText(PDFStreamEngine.java:690)
at org.apache.pdfbox.rendering.PageDrawer.showText(PageDrawer.java:296)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.showTextStrings(PDFStreamEngine.java:600)
at
org.apache.pdfbox.contentstream.operator.text.ShowTextAdjusted.process(ShowTextAdjusted.java:38)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:802)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:464)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:438)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:149)
at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:179)
at
org.apache.pdfbox.rendering.PDFRenderer.renderPage(PDFRenderer.java:205)
at
org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:136)
at
org.apache.pdfbox.rendering.PDFRenderer.renderImageWithDPI(PDFRenderer.java:95)
at
org.ilsos.cm.export.client.rmi.workers.Pdf2SinglePageTiff.processResult(Pdf2SinglePageTiff.java:142)
at org.ilsos.cm.export.client.rmi.ExportWorker.run(ExportWorker.java:72)
at java.lang.Thread.run(Thread.java:784)
************************************************
Disclaimer - This email and any files transmitted with it are confidential and
contain privileged or copyright information. You must not present this message
to another party without gaining permission from the sender. If you are not the
intended recipient you must not copy, distribute or use this email or the
information contained in it for any purpose other than to notify the Office of
the Illinois Secretary of State.
If you have received this message in error, please notify the sender
immediately, and delete this email from your system. Any views expressed in
this message are those of the individual sender, except where the sender
specifically states them to be the views of the Office of the Illinois
Secretary of State.
************************************************
