Stack overflow error using iText 2006-08-01 - By Webber, David (NIH/OD) [C]
Back
Folks - finally been able to isolate this issue with two samples:
http://www.drrw.net/temp/iText/stackoverflow-sample1.pdf
http://www.drrw.net/temp/iText/stackoverflow-sample2.pdf
When we attempt to run them through iText we get the "stack overflow"
error occurring.
Here's the code fragment of how we are using iText, and here's also the
java log details of the loop that leads to the stack overflow crash.
Thanks, DW
========================================================================
===
private void addReaderData(com.lowagie.text.Document  pdfDocument,
PdfReader reader, PdfWriter writer,
String bookmarkText, String attachmentName) throws Throwable {
int i = 0;
PDFGenerationThrowable pth=null;
MessageCollection messages = new
MessageCollection();
try {
int n = reader.getNumberOfPages();
PdfContentByte cb =
writer.getDirectContent();
while (i < n) {
i++;
cat.debug("Add Reader
Data Page # "+i+ attachmentName);
pdfDocument.setPageSize(reader.getPageSizeWithRotation(i));
pdfDocument.newPage();
// pdfDocument.add(new
Paragraph("This is a test"));
PdfImportedPage page =
writer.getImportedPage(reader, i);
int rotation =
reader.getPageRotation(i);
cat.debug("HEIGHT = "
+ reader.getPageSizeWithRotation(i).height());
if (rotation == 90 ||
rotation == 270) {
cb.addTemplate(page, 0, -1f, 1f, 0, 0, reader
.getPageSizeWithRotation(i).height());
} else {
cb.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
}
//
pdfDocument.setFooter(pageFooter);
} // end while
}catch(Exception e)
{
cat.debug("Exception in
addReaderData method while PDF Rotation", e);
throw e;
}
catch(StackOverflowError sth)
{
cat.debug("Stack over Flow error in
addReaderData method while PDF Rotation", sth);
ArrayList tokens = new ArrayList();
tokens.add(new Integer(i));
tokens.add(bookmarkText+"{"+attachmentName+"}");
pdfErrors.add(new
Message(MessageKeys.EGRANTS_INVALID_PDF_STACK_OVER_FLOW_ERROR, tokens));
} catch (Throwable th) {
cat.debug("Exception in
addReaderData method while PDF Rotation",th);
//throw new
StackOverFlowException(i,bookmarkText,new Exception());
throw th;
}
} // addReaderData()
==============================================
Log details:
2006-08-01 11:36:57,107 DEBUG Task-0 (See http://ask-0.ora-code.com)
gov.nih.egrants.beantier.processor.EgrantsFE - [GRANT00072741] - Stack
over Flow error in addReaderData method while PDF Rotation
java.lang.StackOverflowError
at
com.lowagie.text.pdf.BaseFont (BaseFont.java:421)
at
com.lowagie.text.pdf.BaseFont (BaseFont.java:360)
at
com.lowagie.text.pdf.BaseFont (BaseFont.java:332)
at
com.lowagie.text.Font (Font.java:718)
at com.lowagie.text.pdf.PdfChunk <init>(PdfChunk.java:203)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:1328)
at com.lowagie.text.Phrase (Phrase.java:299)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:1478)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:1935)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:812)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:2071)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:1333)
at com.lowagie.text.Phrase (Phrase.java:299)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:1478)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:1935)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:812)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:2071)
at
com.lowagie.text.pdf.PdfDocument (PdfDocument.java:1333)
at com.lowagie.text.Phrase (Phrase.java:299)
and sequence loops until stack overflows...
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
__ ____ ____ ____ ____ ____ ____ ____ ____ ____
iText-questions mailing list
iText-questions@(protected)
https://lists.sourceforge.net/lists/listinfo/itext-questions
|
|
