[jira] [Created] (PDFBOX-4202) PDDocument is closed before calling close()

["Chenyue Gao (JIRA)" <ji...@apache.org>]

Chenyue Gao created PDFBOX-4202:
-----------------------------------

             Summary: PDDocument is closed before calling close()
                 Key: PDFBOX-4202
                 URL: https://issues.apache.org/jira/browse/PDFBOX-4202
             Project: PDFBox
          Issue Type: Bug
          Components: PDModel
    Affects Versions: 2.0.9
         Environment: WIndow 10 x64
            Reporter: Chenyue Gao


 

The following code append PDDocument read from a file to the mainDocument which is passed as parameter. When I save the mainDocument, it throws the exception below. 
{code:java}
public static void addPDPage(PDDocument mainDocument, File file, int pagenum) throws IOException {

    PDDocument pkDocument = PDDocument.load(file);

    PDPageTree pdpageTree = pkDocument.getPages();

    pdpageTree.forEach(page -> {

         mainDocument.addPage(page);

    });
}
{code}
It seems that the pkDocument inside this function automatically closed itself due to Java garbage collection. As a result the mainDocument can't save the page associated with the pkDocument.

A workaround could be to return pkDcoument to the caller and keep the reference at the same level of mainDocument until mainDocument saves

 

 

[2018-04-16 11:11:58] COSStream has been closed and cannot be read. Perhaps its enclosing PDDocument has been closed?
[2018-04-16 11:11:58] 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:77)
at org.apache.pdfbox.cos.COSStream.createRawInputStream(COSStream.java:125)
at org.apache.pdfbox.pdfwriter.COSWriter.visitFromStream(COSWriter.java:1200)
at org.apache.pdfbox.cos.COSStream.accept(COSStream.java:383)
at org.apache.pdfbox.cos.COSObject.accept(COSObject.java:158)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject(COSWriter.java:522)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObjects(COSWriter.java:460)
at org.apache.pdfbox.pdfwriter.COSWriter.doWriteBody(COSWriter.java:444)
at org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1096)
at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:419)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1367)
at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1254)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1232)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1204)
at com.chenyuesoft.vendorcentral.commands.PrintPackingSlipToPDFCommand.run(PrintPackingSlipToPDFCommand.java:116)
at com.chenyuesoft.vendorcentral.commands.AbstractCommand.execute(AbstractCommand.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)



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