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https://issues.apache.org/jira/browse/SOLR-2126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923010#action_12923010
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Koji Sekiguchi commented on SOLR-2126:
--------------------------------------

David, I recently committed SOLR-2148. I'm not sure it fixes your problem, but 
can you try the latest 3x or trunk to see if it solves your problem? 

> highlighting multicore searches relying on q.alt gives NPE
> ----------------------------------------------------------
>
>                 Key: SOLR-2126
>                 URL: https://issues.apache.org/jira/browse/SOLR-2126
>             Project: Solr
>          Issue Type: Bug
>          Components: highlighter
>    Affects Versions: 1.4
>         Environment: I'm on a trunk release from early March, but I also just 
> verified this on LucidWorks 1.4 which I have handy.
>            Reporter: David Smiley
>            Priority: Minor
>
> To reproduce this, run the example multicore solr configuration.  Then index 
> each example document into each core.  Now we're going to do a distributed 
> search, with q.alt=*:* and defType=dismax.  Normally, these would be set in a 
> request handler config as defaults but we'll put them in the url to make it 
> clear they need to be set and because the default multicore example config is 
> so bare bones that it doesn't already have a dismax setup.  We're going to 
> enable highlighting.
> http://localhost:8983/solr/core0/select?hl=true&q.alt=*:*&defType=dismax&shards=localhost:8983/solr/core0,localhost:8983/solr/core1
> java.lang.NullPointerException
>       at 
> org.apache.solr.handler.component.HighlightComponent.finishStage(HighlightComponent.java:130)
>       at 
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:296)
>       at 
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)
>       at org.apache.solr.core.SolrCore.execute(SolrCore.java:1316)
>       at 
> org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:338)
>       at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:241)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
>       at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
>       at 
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
>       at 
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>       at 
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
>       at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
>       at 
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)
>       at 
> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
>       at 
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
>       at org.mortbay.jetty.Server.handle(Server.java:285)
>       at 
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)
>       at 
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:821)
>       at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
>       at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:208)
>       at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)
>       at 
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
>       at 
> org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
> Since I happen to be using edismax in trunk, it was easy for me to work 
> around this problem by renaming my q.alt parameter in my request handler 
> defaults to just "q" since edismax understands raw lucene queries.

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