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Posted to dev@lucene.apache.org by "Robert Muir (JIRA)" <ji...@apache.org> on 2013/07/26 03:14:46 UTC
[jira] [Resolved] (LUCENE-5137) UAX29URLEmailTokenizer.java causes
NullPointerException in 4.3 and 4.4
[ https://issues.apache.org/jira/browse/LUCENE-5137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Muir resolved LUCENE-5137.
---------------------------------
Resolution: Not A Problem
The best effort is throwing a problem because the consumer (you) isn't calling reset.
See the javadocs of tokenstream. you must call reset before the incrementToken loop.
> UAX29URLEmailTokenizer.java causes NullPointerException in 4.3 and 4.4
> ----------------------------------------------------------------------
>
> Key: LUCENE-5137
> URL: https://issues.apache.org/jira/browse/LUCENE-5137
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Affects Versions: 4.3
> Environment: Windows 7
> Reporter: Allan Rofer
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> There is a comment (best effort NPE if you dont call reset) in the "getScannerFor" method in UAX29URLEmailTokenizer. The callers of getScannerFor do NOT call reset, so an NPE is thrown in the parser which has a null Reader. If you put the line "this.scanner.yyreset(input);" after each call to getScannerFor, the NPE is avoided.
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