Shawn Heisey created SOLR-8558:
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Summary: Referencing an invalid query parser results in cryptic NPE
Key: SOLR-8558
URL: https://issues.apache.org/jira/browse/SOLR-8558
Project: Solr
Issue Type: Bug
Components: query parsers
Affects Versions: 5.4
Reporter: Shawn Heisey
Assignee: Shawn Heisey
Priority: Minor
When an invalid query parser name is used with the defType parameter or in
localparams, Solr logs an extremely unhelpful NPE (this stacktrace obtained
from the solr-user mailing list):
{code}
java.lang.NullPointerException
at org.apache.solr.search.QParser.getParser(QParser.java:315)
at
org.apache.solr.handler.component.QueryComponent.prepare(QueryComponent.java:159)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:254)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:156)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2073)
at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:658)
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:457)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:222)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:181)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at org.eclipse.jetty.server.Server.handle(Server.java:499)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:745)
{code}
This should be improved so the user will know what actually went wrong.
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