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From "Mikhail Khludnev (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SOLR-13179) NullPointerException in org/apache/lucene/queries/function/FunctionScoreQuery.java [109]
Date Fri, 01 Mar 2019 18:34:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-13179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mikhail Khludnev resolved SOLR-13179.
-------------------------------------
       Resolution: Duplicate
    Fix Version/s: 8.1
                   master (9.0)

> 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: h1. Steps to reproduce
> * Use a Linux machine.
> *  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 given in the bug description.
> h1. Compiling the server
> {noformat}
> git clone https://github.com/apache/lucene-solr
> cd lucene-solr
> git checkout ea2c8ba
> ant compile
> cd solr
> ant server
> {noformat}
> h1. Building the collection
> We followed [Exercise 2|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html#exercise-2]
from the [Solr Tutorial|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html]. The attached
file ({{home.zip}}) gives the contents of folder {{/tmp/home}} that you will obtain by following
the steps below:
> {noformat}
> mkdir -p /tmp/home
> echo '<?xml version="1.0" encoding="UTF-8" ?><solr></solr>' > /tmp/home/solr.xml
> {noformat}
> In one terminal start a Solr instance in foreground:
> {noformat}
> ./bin/solr start -f -p 8983 -s /tmp/home
> {noformat}
> In another terminal, create a collection of movies, with no shards and no replication,
and initialize it:
> {noformat}
> 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
> {noformat}
>            Reporter: Marek
>            Priority: Minor
>              Labels: diffblue, newdev
>             Fix For: master (9.0), 8.1
>
>         Attachments: home.zip
>
>
> Requesting the following URL causes Solr to return an HTTP 500 error response:
> {noformat}
> http://localhost:8983/solr/films/select?facet.query=&q={!frange%20l=10%20u=100}boost({!v=+},3)
> {noformat}
> The error response seems to be caused by the following uncaught exception:
> {noformat}
> ERROR (qtp689401025-23) [   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)
> 	at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:711)
> 	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:516)
> 	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:394)
> 	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:340)
> 	[...]
> {noformat}
> 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].
> ----------------------------------------
> We found this bug using [Diffblue Microservices Testing|https://www.diffblue.com/labs/].
Find more information on this [fuzz testing 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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