Andreas Hubold created PDFBOX-4162:
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Summary: OutOfMemoryError in
PDExtendedGraphicsState#getLineDashPattern
Key: PDFBOX-4162
URL: https://issues.apache.org/jira/browse/PDFBOX-4162
Project: PDFBox
Issue Type: Bug
Affects Versions: 2.0.8
Reporter: Andreas Hubold
I'm getting an OutOfMemoryError from PDFBox when parsing a certain PDF using
the Apache Tika App v 1.17 - which uses PDFBox 2.0.8 internally. This is
reproducible even with 8GB heap.
The OutOfMemoryError happens in
org.apache.pdfbox.pdmodel.graphics.state.PDExtendedGraphicsState#getLineDashPattern,
which contains this piece of suspicious code:
{code:java}
COSArray dp = (COSArray) dict.getDictionaryObject( COSName.D );
if( dp != null )
{
COSArray array = new COSArray();
dp.addAll(dp);
{code}
The last line is wrong. It appends all elements from 'dp' to 'dp' again,
effectively duplicating the elements in the list. Maybe the intention was to
add it to the created array instead.
Stacktrace:
{noformat}
[Full GC (Allocation Failure) 4225609K->4224664K(5989888K), 32,9544686 secs]
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:3210)
at java.util.Arrays.copyOf(Arrays.java:3181)
at java.util.ArrayList.grow(ArrayList.java:261)
at java.util.ArrayList.ensureExplicitCapacity(ArrayList.java:235)
at java.util.ArrayList.ensureCapacityInternal(ArrayList.java:227)
at java.util.ArrayList.addAll(ArrayList.java:579)
at org.apache.pdfbox.cos.COSArray.addAll(COSArray.java:124)
at
org.apache.pdfbox.pdmodel.graphics.state.PDExtendedGraphicsState.getLineDashPattern(PDExtendedGraphicsState.java:280)
at
org.apache.pdfbox.pdmodel.graphics.state.PDExtendedGraphicsState.copyIntoGraphicsState(PDExtendedGraphicsState.java:89)
at
org.apache.pdfbox.contentstream.operator.state.SetGraphicsStateParameters.process(SetGraphicsStateParameters.java:61)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:838)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:495)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:469)
at
org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:150)
at
org.apache.pdfbox.text.LegacyPDFStreamEngine.processPage(LegacyPDFStreamEngine.java:139)
at
org.apache.pdfbox.text.PDFTextStripper.processPage(PDFTextStripper.java:391)
at org.apache.tika.parser.pdf.PDF2XHTML.processPage(PDF2XHTML.java:147)
at
org.apache.pdfbox.text.PDFTextStripper.processPages(PDFTextStripper.java:319)
at
org.apache.pdfbox.text.PDFTextStripper.writeText(PDFTextStripper.java:266)
at org.apache.tika.parser.pdf.PDF2XHTML.process(PDF2XHTML.java:117)
at org.apache.tika.parser.pdf.PDFParser.parse(PDFParser.java:168)
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280)
at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280)
at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:143)
at org.apache.tika.cli.TikaCLI$OutputType.process(TikaCLI.java:205)
at org.apache.tika.cli.TikaCLI.process(TikaCLI.java:486)
at org.apache.tika.cli.TikaCLI.main(TikaCLI.java:145){noformat}
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