[SOLR-9616] Solr throws exception when expand=true on empty result

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 6.2.1, 6.3
• Fix Version/s: 6.4, 7.0
• Component/s: SearchComponents - other
• Assignee: Ishan Chattopadhyaya
• Reporter: Timo Hund
• Created: 10/Oct/16 11:40
• Updated: 08/Oct/19 14:50
• Resolved: 09/Nov/17 10:10

Description

When i run a query with expand=true with field collapsing and the result set is empty an exception is thrown:

solr:8984/solr/core_en/select?&fq=

{!collapse field=pid}

&expand=true&expand.rows=10

Produces:

"error":{
"msg":"Index: 0, Size: 0",
"trace":"java.lang.IndexOutOfBoundsException: Index: 0, Size: 0\n\tat java.util.ArrayList.rangeCheck(ArrayList.java:653)\n\tat java.util.ArrayList.get(ArrayList.java:429)\n\tat java.util.Collections$UnmodifiableList.get(Collections.java:1309)\n\tat org.apache.solr.handler.component.ExpandComponent.process(ExpandComponent.java:269)\n\tat org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:293)\n\tat org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:156)\n\tat org.apache.solr.core.SolrCore.execute(SolrCore.java:2036)\n\tat org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:657)\n\tat org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:464)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:257)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208)\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:518)\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)\n\tat org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)\n\tat org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)\n\tat org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)\n\tat org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)\n\tat org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)\n\tat java.lang.Thread.run(Thread.java:745)\n",
"code":500}}

Instead i would assume to get an empty result.

Is this a bug?

Issue Links

• links to: GitHub Pull Request #106
• links to: GitHub Pull Request #106