Gilbert created PDFBOX-5013:
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Summary: Java Runtime Finalizer closes all COSDocument-Objects no
mater if they are still being used or not
Key: PDFBOX-5013
URL: https://issues.apache.org/jira/browse/PDFBOX-5013
Project: PDFBox
Issue Type: Bug
Components: Writing
Affects Versions: 2.0.21, 2.0.20
Environment: SpringBoot
Reporter: Gilbert
I am running a spring boot based microservice that creates pdf's for a mimaki
digital printer.
Every pdf contains multiple type labels with an individual datamatrix code on
it, which I have been creating with PDFbox.
A single run for a job takes about 3-4 minutes. The service is running
flawlessly for hours but sometimes during a large job the following Exception
is thrown while writing the resulting pdf to disc.
Caused by: java.io.IOException: COSStream has been closed and cannot be read.
Perhaps its enclosing PDDocument has been closed?
at org.apache.pdfbox.cos.COSStream.checkClosed(COSStream.java:83)
at org.apache.pdfbox.cos.COSStream.createRawInputStream(COSStream.java:133)
at org.apache.pdfbox.pdfwriter.COSWriter.visitFromStream(COSWriter.java:1217)
at org.apache.pdfbox.cos.COSStream.accept(COSStream.java:404)
at org.apache.pdfbox.cos.COSObject.accept(COSObject.java:158)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject(COSWriter.java:524)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObjects(COSWriter.java:462)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteBody(COSWriter.java:446)
at org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1111)
at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:449)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1384)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1271)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1350)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1321)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1309)
at
de.dehn.middleware.service.PDFService$PDFCreatorCallable.save(PDFService.java:458)
I have tracked it down and found out that the Java Finalizer calls the
finalize() Method on all COSDocument Objects and closes them forcefully no
matter I've they are still being used or not.
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