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https://issues.apache.org/jira/browse/OPENNLP-1950?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Wiesner updated OPENNLP-1950:
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Fix Version/s: 2.5.13
> Fix ADChunkSampleStream fails with NPE on the FlorestaVirgem corpus
> -------------------------------------------------------------------
>
> Key: OPENNLP-1950
> URL: https://issues.apache.org/jira/browse/OPENNLP-1950
> Project: OpenNLP
> Issue Type: Bug
> Affects Versions: 2.5.12, 3.0.0-M6
> Reporter: Richard Zowalla
> Assignee: Kristian Rickert
> Priority: Minor
> Fix For: 2.5.13, 3.0.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Reading {{FlorestaVirgem\_CF\_3.0\_ad.txt}} \(Linguateca, ISO\-8859\-1\) with
> {{ADChunkSampleStream}} fails after 4,641 samples:
> {noformat}
> java.lang.NullPointerException
> at java.base/java.util.Objects.requireNonNull\(Objects.java:220\)
> at java.base/java.util.List.copyOf\(List.java:1191\)
> at opennlp.tools.chunker.ChunkSample.\(ChunkSample.java:68\)
> at
> opennlp.tools.formats.ad.ADChunkSampleStream.read\(ADChunkSampleStream.java:116\)
> {noformat}
> One of the token, tag or chunk lists passed to {{ChunkSample}} contains a
> {{null}} element. {{ArvoresDeitadasEval}} only uses Bosque for chunking, so
> the evals don't catch it.
> _Fix:_ find the construct that yields the null tag, handle it or skip the
> sample with a warning, and add a test with that construct.
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