Andreas Lehmkühler created PDFBOX-5764:
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Summary: Wrong chunksize when using a ByteBuffer to initialize a
RandomAccessReadBuffer
Key: PDFBOX-5764
URL: https://issues.apache.org/jira/browse/PDFBOX-5764
Project: PDFBox
Issue Type: Bug
Components: IO
Affects Versions: 3.0.1 PDFBox, 4.0.0
Reporter: Andreas Lehmkühler
Assignee: Andreas Lehmkühler
Fix For: 3.0.2 PDFBox, 4.0.0
David Klika posted the following bug report on dev@
{quote}
I think that this is not correct in some cases:
public RandomAccessReadBuffer(ByteBuffer input) {
chunkSize = input.capacity();
IMHO input.limit() shoud be used instead of input.capacity().
When it matters: I have a ByteArrayOutputStream to that is written a PDF
document. Later I want to open the PDF document using PDFBox again. If I use
part of the internal buffer directly (without copying), eg.
ByteBuffer.wrap(bos.getInternalBuffer(), 0, bos.size()), I get exception
like that:
{quote}
{code}
java.lang.IllegalArgumentException: newPosition > limit: (31556 > 20960)
at
java.base/java.nio.Buffer.createPositionException(Buffer.java:352)
at java.base/java.nio.Buffer.position(Buffer.java:327)
at java.base/java.nio.ByteBuffer.position(ByteBuffer.java:1551)
at java.base/java.nio.ByteBuffer.position(ByteBuffer.java:285)
at
org.apache.pdfbox.io.RandomAccessReadBuffer.seek(RandomAccessReadBuffer.java
:187)
at
org.apache.pdfbox.pdfparser.COSParser.getStartxrefOffset(COSParser.java:506)
at
org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:259)
at
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:107)
at
org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:171)
at
org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:136)
at org.apache.pdfbox.Loader.loadPDF(Loader.java:466)
at org.apache.pdfbox.Loader.loadPDF(Loader.java:369)
{code}
{quote}
31556 is the buffer capacity, 20960 is its limit
I think the buffer should not be read beyond its limit.
{quote}
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