Munendra S N created SOLR-13877:
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Summary: NPE in ExpandComponent
Key: SOLR-13877
URL: https://issues.apache.org/jira/browse/SOLR-13877
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Munendra S N
Truncated Stack trace
{code:java}
Caused by: java.lang.NullPointerException
at org.apache.lucene.util.BytesRef.compareTo(BytesRef.java:162)
at org.apache.lucene.util.BytesRef.compareTo(BytesRef.java:36)
at
java.base/java.util.Comparators$NaturalOrderComparator.compare(Comparators.java:52)
at
java.base/java.util.Comparators$NaturalOrderComparator.compare(Comparators.java:47)
at org.apache.lucene.util.ArrayTimSorter.compare(ArrayTimSorter.java:48)
at org.apache.lucene.util.TimSorter.nextRun(TimSorter.java:109)
at org.apache.lucene.util.TimSorter.sort(TimSorter.java:201)
at org.apache.lucene.util.ArrayUtil.timSort(ArrayUtil.java:452)
at org.apache.lucene.util.ArrayUtil.timSort(ArrayUtil.java:471)
at org.apache.lucene.util.ArrayUtil.timSort(ArrayUtil.java:479)
at
org.apache.lucene.search.TermInSetQuery.<init>(TermInSetQuery.java:85)
at
org.apache.lucene.search.TermInSetQuery.<init>(TermInSetQuery.java:107)
at
org.apache.solr.handler.component.ExpandComponent.getGroupQuery(ExpandComponent.java:746)
at
org.apache.solr.handler.component.ExpandComponent.process(ExpandComponent.java:330)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:328)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:198)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2583)
at org.apache.solr.util.TestHarness.query(TestHarness.java:339)
at org.apache.solr.util.TestHarness.query(TestHarness.java:321)
at org.apache.solr.SolrTestCaseJ4.assertQ(SolrTestCaseJ4.java:972)
{code}
This could happen when expand component is used without collapse and docs
returned have fewer unique values
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