Marek created SOLR-13179:
----------------------------
Summary: NullPointerException in
org/apache/lucene/queries/function/FunctionScoreQuery.java [109]
Key: SOLR-13179
URL: https://issues.apache.org/jira/browse/SOLR-13179
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: master (9.0)
Environment: h2. Steps to reproduce
* Build commit ea2c8ba of Solr as described in the section below.
* Build the films collection as described below.
* Start the server using the command "./bin/solr start -f -p 8983 -s /tmp/home"
* Request the URL above.
h2. Compiling the server
git clone [https://github.com/apache/lucene-solr
]cd lucene-solr
git checkout ea2c8ba
ant compile
cd solr
ant server
h2. Building the collection
We followed Exercise 2 from the quick start tutorial
([http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html#exercise-2]). The
attached file (home.zip) gives the contents of folder /tmp/home that you will
obtain by following the steps below.
mkdir -p /tmp/home
echo '<?xml version="1.0" encoding="UTF-8" ?><solr></solr>' >
/tmp/home/solr.xml
In one terminal start a Solr instance in foreground:
./bin/solr start -f -p 8983 -s /tmp/home
In another terminal, create a collection of movies, with no shards and no
replication:
bin/solr create -c films
curl -X POST -H 'Content-type:application/json' --data-binary '\{"add-field":
{"name":"name", "type":"text_general", "multiValued":false, "stored":true}}'
[http://localhost:8983/solr/films/schema]
curl -X POST -H 'Content-type:application/json' --data-binary
'{"add-copy-field" : {"source":"*","dest":"_text_"}}'
[http://localhost:8983/solr/films/schema]
./bin/post -c films example/films/films.json
Reporter: Marek
Attachments: home.zip
Execution of the URL query:
*http://localhost:8983/solr/films/select?q=\{!frange%20l=10%20u=100}boost(\{!v=+},3)*
leads to a NullPointerException:
2019-01-29 13:42:04.662 ERROR (qtp689401025-21) [ x:films] o.a.s.s.HttpSolrCall
null:java.lang.NullPointerException
at
org.apache.lucene.queries.function.FunctionScoreQuery.rewrite(FunctionScoreQuery.java:109)
at org.apache.lucene.search.IndexSearcher.rewrite(IndexSearcher.java:667)
at
org.apache.lucene.queries.function.valuesource.QueryValueSource.createWeight(QueryValueSource.java:75)
at
org.apache.solr.search.function.ValueSourceRangeFilter.createWeight(ValueSourceRangeFilter.java:105)
at
org.apache.solr.search.SolrConstantScoreQuery$ConstantWeight.<init>(SolrConstantScoreQuery.java:94)
at
org.apache.solr.search.SolrConstantScoreQuery.createWeight(SolrConstantScoreQuery.java:119)
at org.apache.lucene.search.IndexSearcher.createWeight(IndexSearcher.java:717)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:443)
at
org.apache.solr.search.SolrIndexSearcher.buildAndRunCollectorChain(SolrIndexSearcher.java:200)
at
org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1604)
at
org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1420)
at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:567)
at
org.apache.solr.handler.component.QueryComponent.doProcessUngroupedSearch(QueryComponent.java:1434)
at
org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:373)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:298)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2559)
[...]
More details:
1. In org/apache/solr/search/ValueSourceParser.java[330] a variable query 'q'
is assigned the value null, which is obtained from
org/apache/solr/search/LuceneQParser.java[39], because a variable 'qstr' is the
empty string.
2. In org/apache/solr/search/ValueSourceParser.java[332] the null value of 'q'
is passed to function 'FunctionScoreQuery.boostByValue', which in turn leads to
initialisation of member 'in' of
org.apache.lucene.queries.function.FunctionScoreQuery to null at
org/apache/lucene/queries/function/FunctionScoreQuery.java[56].
3. Later, during execution of the query, there is dereferenced the member 'in'
(still having the null value) at
org/apache/lucene/queries/function/FunctionScoreQuery.java[109].
See section 'Environment' to see how Solr and data (films collection) were
installed and configured.
---------------------------------
This bug was found using [Diffblue Microservices
Testing|http://www.diffblue.com/labs]. Find more information on this [test
campaign|https://www.diffblue.com/blog/2018/12/19/diffblue-microservice-testing-a-sneak-peek-at-our-early-product-and-results].
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