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https://issues.apache.org/jira/browse/TIKA-1372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14070847#comment-14070847
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Tilman Hausherr commented on TIKA-1372:
---------------------------------------
IMHO the cause is TIKA not doing some null checks for fields without a name and
without a value. See the attached files in PDFBOX-2218, especially the
printfields output.
> PDCheckbox NPE
> --------------
>
> Key: TIKA-1372
> URL: https://issues.apache.org/jira/browse/TIKA-1372
> Project: Tika
> Issue Type: Bug
> Reporter: Tilman Hausherr
>
> One of your users, [~mdhussain], opened PDFBOX-2218:
> PDF parsing fails for attached PDF.
> Stack trace of failure:
> {code}
> Exception in thread "main" org.apache.tika.exception.TikaException:
> Unexpected RuntimeException from org.apache.tika.parser.pdf.PDFParser@1747c
> at
> org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:244)
> at
> org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:242)
> at
> org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:120)
> at
> com.sabax.extraction.FileExtractionHandler.getFileData(FileExtractionHandler.java:145)
> at GenerateIndex.main(GenerateIndex.java:59)
> 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)
> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
> Caused by: java.lang.NullPointerException
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDCheckbox.getOnValue(PDCheckbox.java:141)
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDCheckbox.isChecked(PDCheckbox.java:79)
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDRadioCollection.getValue(PDRadioCollection.java:128)
> at
> org.apache.tika.parser.pdf.PDF2XHTML.addFieldString(PDF2XHTML.java:507)
> at
> org.apache.tika.parser.pdf.PDF2XHTML.processAcroField(PDF2XHTML.java:461)
> at
> org.apache.tika.parser.pdf.PDF2XHTML.processAcroField(PDF2XHTML.java:479)
> at
> org.apache.tika.parser.pdf.PDF2XHTML.extractAcroForm(PDF2XHTML.java:447)
> at org.apache.tika.parser.pdf.PDF2XHTML.endDocument(PDF2XHTML.java:195)
> at
> org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:341)
> at org.apache.tika.parser.pdf.PDF2XHTML.process(PDF2XHTML.java:106)
> at org.apache.tika.parser.pdf.PDFParser.parse(PDFParser.java:143)
> at
> org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:242)
> ... 9 more
> {code}
> Sample code use to parse
> {code}
> TikaInputStream tikaStream = TikaInputStream.get(stream);
> TikaResultWrapper result;
> try {
> long streamSize = tikaStream.getLength();
> Metadata metadata =
> constructMetadata(fileName, mimeType, streamSize);
> if (streamSize < maxFileSize) {
> SamplingSaxHandler handler =
> new SamplingSaxHandler(samplingSize, metadata);
> handler.setBufferLimit(bufferSize);
> parser.parse(tikaStream, handler, metadata, new ParseContext());
> result = handler.getResult();
> } else {
> result = new TikaResultWrapper(null, metadata);
> }
> } finally {
> tikaStream.close();
> }
> return result;
> {code}
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