Tim Allison created LUCENE-5450:
-----------------------------------
Summary: NPE and Illegal Argument Exception in wrapped
SpanMultiTerms with no matches
Key: LUCENE-5450
URL: https://issues.apache.org/jira/browse/LUCENE-5450
Project: Lucene - Core
Issue Type: Bug
Components: core/search
Affects Versions: 5.0
Reporter: Tim Allison
There are problems with the handling of wrapped span multiterms that don't have
any matches.
1) In the test framework, when AssertingIndexSearcher does a rewrite and then
checks for equality, there's an NPE for SpanNear and SpanOr:
{noformat}
java.lang.NullPointerException
at
__randomizedtesting.SeedInfo.seed([8E96A398C89A703B:338EB53A2EDBE8CC]:0)
at
org.apache.lucene.search.spans.SpanOrQuery.addClause(SpanOrQuery.java:57)
at
org.apache.lucene.search.spans.SpanOrQuery.<init>(SpanOrQuery.java:49)
at org.apache.lucene.search.spans.SpanOrQuery.clone(SpanOrQuery.java:86)
at org.apache.lucene.search.spans.SpanOrQuery.clone(SpanOrQuery.java:39)
at
org.apache.lucene.search.QueryUtils.checkHashEquals(QueryUtils.java:57)
at org.apache.lucene.search.QueryUtils.check(QueryUtils.java:52)
at
org.apache.lucene.search.AssertingIndexSearcher.rewrite(AssertingIndexSearcher.java:80)
at
org.apache.lucene.search.IndexSearcher.createNormalizedWeight(IndexSearcher.java:675)
at
org.apache.lucene.search.AssertingIndexSearcher.createNormalizedWeight(AssertingIndexSearcher.java:59)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:273)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:261)
at
org.apache.lucene.search.spans.TestSpanMultiTermQueryWrapper.testNoSuchMultiTermsInOr(TestSpanMultiTermQueryWrapper.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1559)
...
{noformat}
2) The same issue is causing a "Clauses must have same field" illegal argument
exception in a SpanNotQuery.
{noformat}
java.lang.IllegalArgumentException: Clauses must have same field.
at
__randomizedtesting.SeedInfo.seed([779E5DD7E7523C72:4C2ECAAB938038F9]:0)
at
org.apache.lucene.search.spans.SpanNotQuery.<init>(SpanNotQuery.java:66)
at
org.apache.lucene.search.spans.SpanNotQuery.clone(SpanNotQuery.java:99)
at
org.apache.lucene.search.spans.SpanNotQuery.clone(SpanNotQuery.java:36)
at
org.apache.lucene.search.QueryUtils.checkHashEquals(QueryUtils.java:57)
at org.apache.lucene.search.QueryUtils.check(QueryUtils.java:52)
at
org.apache.lucene.search.AssertingIndexSearcher.rewrite(AssertingIndexSearcher.java:80)
at
org.apache.lucene.search.IndexSearcher.createNormalizedWeight(IndexSearcher.java:675)
at
org.apache.lucene.search.AssertingIndexSearcher.createNormalizedWeight(AssertingIndexSearcher.java:59)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:273)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:261)
at
org.apache.lucene.search.spans.TestSpanMultiTermQueryWrapper.testNoSuchMultiTermsInNotNear(TestSpanMultiTermQueryWrapper.java:144)
...
{noformat}
The basic problem is that an empty SpanQuery (SpanOrQuery with zero clauses)
does not have a field, and much of our code assumes that the field is not null.
Test case and patch on way.
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