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https://issues.apache.org/jira/browse/SOLR-3792?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jan Høydahl closed SOLR-3792.
-----------------------------
Resolution: Information Provided
Closing ooold issue from 4.0-beta. If this was a problem simply due to an empty
field, we'd see this bug again and again. If anyone still see this NPE in their
recent Solr installs, please speak up!
> NullPointerException in highlighter under certain conditions
> ------------------------------------------------------------
>
> Key: SOLR-3792
> URL: https://issues.apache.org/jira/browse/SOLR-3792
> Project: Solr
> Issue Type: Bug
> Components: highlighter
> Affects Versions: 4.0-BETA
> Environment: Windows 7, Java 6 or 7
> Reporter: Yoni Amir
>
> Under certain conditions, there is an exception in highlighter component. The
> stacktrace is shown below.
> The conditions are:
> 1) Add a document with a field that has empty value. E.g., with solrj api:
> document.addField ("field1", "");
> (Maybe this is not a valid value or use-case, but Solr stills allows it!!)
> 2) have solr.WhitespaceTokenizerFactory as the tokenizer of the analyzer
> chain for that field.
> 3) make sure that this field should be highlighted. In my case, I was using
> hl.requireFieldMatch=false, and actually I was searching on another field.
> 4) Using edismax, search for a phrase, e.g., "foo bar" (including the
> quotation marks)
> 5) The document mentioned before should be part of the search results.
> 6) This exception occurs:
> INFO (SolrCore.java:1670) - [rcmCore] webapp=/solr path=/select
> params={qf=all_text&version=2&rows=20&wt=javabin&start=0&q="foo bar"}
> hits=103 status=500 QTime=38 ERROR (SolrException.java:104) -
> null:java.lang.NullPointerException
> at
> org.apache.lucene.analysis.util.CharacterUtils$Java5CharacterUtils.fill(CharacterUtils.java:191)
> at
> org.apache.lucene.analysis.util.CharTokenizer.incrementToken(CharTokenizer.java:152)
> at
> org.apache.lucene.analysis.miscellaneous.WordDelimiterFilter.incrementToken(WordDelimiterFilter.java:209)
> at
> org.apache.lucene.analysis.util.FilteringTokenFilter.incrementToken(FilteringTokenFilter.java:50)
> at
> org.apache.lucene.analysis.miscellaneous.RemoveDuplicatesTokenFilter.incrementToken(RemoveDuplicatesTokenFilter.java:54)
> at
> org.apache.lucene.analysis.core.LowerCaseFilter.incrementToken(LowerCaseFilter.java:54)
> at
> org.apache.solr.highlight.TokenOrderingFilter.incrementToken(DefaultSolrHighlighter.java:629)
> at
> org.apache.lucene.analysis.CachingTokenFilter.fillCache(CachingTokenFilter.java:78)
> at
> org.apache.lucene.analysis.CachingTokenFilter.incrementToken(CachingTokenFilter.java:50)
> at
> org.apache.lucene.search.highlight.Highlighter.getBestTextFragments(Highlighter.java:225)
> at
> org.apache.solr.highlight.DefaultSolrHighlighter.doHighlightingByHighlighter(DefaultSolrHighlighter.java:510)
> at
> org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:401)
> at
> org.apache.solr.handler.component.HighlightComponent.process(HighlightComponent.java:136)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:206)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:1656)
> at
> org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:454)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:275)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
> at java.lang.Thread.run(Thread.java:736)
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