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https://issues.apache.org/jira/browse/SOLR-2001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539376#comment-13539376
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David Smiley commented on SOLR-2001:
------------------------------------
I troubleshooted a user's query just now, discovering that the problem was that
he had no 'q' parameter, and thus his 'fq' was irrelevant. Embarrassingly, I
didn't notice this immediately. It's wonderful that a blank q no longer throws
an error, as shown in the title of this issue. But what good is search that
has no 'q' parameter at all? It should be an error. 'course if \*:\* were the
default then this would be a non-issue -- my preference but it's too late to
argue that now.
> NPE using http://localhost:8983/solr/select/?q=
> -----------------------------------------------
>
> Key: SOLR-2001
> URL: https://issues.apache.org/jira/browse/SOLR-2001
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 1.4.1
> Environment: http://localhost:8983/solr/select/?q=
> Reporter: Sebb
> Fix For: 4.0-ALPHA
>
> Attachments: SOLR-2001.patch
>
>
> {code}
> null
> java.lang.NullPointerException
> at java.io.StringReader.<init>(StringReader.java:33)
> at org.apache.lucene.queryParser.QueryParser.parse(QueryParser.java:197)
> at
> org.apache.solr.search.LuceneQParser.parse(LuceneQParserPlugin.java:78)
> at org.apache.solr.search.QParser.getQuery(QParser.java:131)
> at
> org.apache.solr.handler.component.QueryComponent.prepare(QueryComponent.java:89)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:174)
> 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)
> RequestURI=/solr/select/
> {code}
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