[jira] [Created] (PDFBOX-2424) ClassCastException in getMetaData if no real meta data

["Tilman Hausherr (JIRA)" <ji...@apache.org>]

Tilman Hausherr created PDFBOX-2424:
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             Summary: ClassCastException in getMetaData if no real meta data
                 Key: PDFBOX-2424
                 URL: https://issues.apache.org/jira/browse/PDFBOX-2424
             Project: PDFBox
          Issue Type: Bug
            Reporter: Tilman Hausherr


Here's an exception from [~tallison@apache.org] latest TIKA test (too lazy to test it myself, the cause is obvious) with the attached file:
{code}
org.apache.tika.exception.TikaException: Unexpected RuntimeException from org.apache.tika.parser.pdf.PDFParser
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:249)
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:247)
	at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:120)
	at org.apache.tika.parser.RecursiveParserWrapper.parse(RecursiveParserWrapper.java:137)
	at org.apache.tika.batch.fs.RecursiveParserWrapperFSConsumer.processFileResource(RecursiveParserWrapperFSConsumer.java:120)
	at org.apache.tika.batch.FileResourceConsumer._processFileResource(FileResourceConsumer.java:153)
	at org.apache.tika.batch.FileResourceConsumer.call(FileResourceConsumer.java:96)
	at org.apache.tika.batch.FileResourceConsumer.call(FileResourceConsumer.java:38)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.ClassCastException: org.apache.pdfbox.cos.COSDictionary cannot be cast to org.apache.pdfbox.cos.COSStream
	at org.apache.pdfbox.pdmodel.PDDocumentCatalog.getMetadata(PDDocumentCatalog.java:312)
	at org.apache.tika.parser.pdf.PDFParser.extractMetadata(PDFParser.java:181)
	at org.apache.tika.parser.pdf.PDFParser.parse(PDFParser.java:158)
	at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:247)
	... 13 more
"
{code}
here's the excerpt in the PDF:
{code}
241 0 obj << /Type /Metadata /Subtype /XML >> endobj
{code}
the current code is
{code}
        COSStream stream = (COSStream)root.getDictionaryObject( COSName.METADATA );
{code}
shall we keep it that way or rather put out a warning if the meta data is not a stream and return null? Adobe Reader does nothing when looking for the properties.



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