[ https://issues.apache.org/jira/browse/SOLR-13196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Munendra S N resolved SOLR-13196. --------------------------------- Resolution: Duplicate > NullPointerException in > o.a.solr.search.facet.FacetFieldProcessor.findTopSlots() > ----------------------------------------------------------------------------------- > > Key: SOLR-13196 > URL: https://issues.apache.org/jira/browse/SOLR-13196 > Project: Solr > Issue Type: Bug > 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: Cesar Rodriguez > Priority: Minor > Labels: diffblue, newdev > Attachments: home.zip > > > Requesting the following URL causes Solr to return an HTTP 500 error response: > {noformat} > http://localhost:8983/solr/films/select?facet.sort=asc&facet=on&bf=2&q=x&facet.version=2&facet.field=genre > {noformat} > The error response seems to be caused by the following uncaught exception: > {noformat} > java.lang.NullPointerException > at > org.apache.solr.search.facet.FacetFieldProcessor.lambda$findTopSlots$1(FacetFieldProcessor.java:325) > at > org.apache.solr.search.facet.FacetFieldProcessor$1.lessThan(FacetFieldProcessor.java:331) > at > org.apache.solr.search.facet.FacetFieldProcessor$1.lessThan(FacetFieldProcessor.java:329) > at org.apache.lucene.util.PriorityQueue.upHeap(PriorityQueue.java:254) > at org.apache.lucene.util.PriorityQueue.add(PriorityQueue.java:131) > at > org.apache.solr.search.facet.FacetFieldProcessor.findTopSlots(FacetFieldProcessor.java:363) > at > org.apache.solr.search.facet.FacetFieldProcessorByArray.calcFacets(FacetFieldProcessorByArray.java:114) > at > org.apache.solr.search.facet.FacetFieldProcessorByArray.process(FacetFieldProcessorByArray.java:62) > at > org.apache.solr.search.facet.FacetRequest.process(FacetRequest.java:401) > at > org.apache.solr.search.facet.FacetProcessor.processSubs(FacetProcessor.java:472) > at > org.apache.solr.search.facet.FacetProcessor.fillBucket(FacetProcessor.java:429) > at > org.apache.solr.search.facet.FacetQueryProcessor.process(FacetQuery.java:64) > at > org.apache.solr.search.facet.FacetRequest.process(FacetRequest.java:401) > at > org.apache.solr.search.facet.FacetModule.process(FacetModule.java:139) > at > org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:298) > [...] > {noformat} > Removing any parameter in the URL makes the NPE disappear, so all URL > parameters seem to be involved. > Method {{org.apache.solr.search.facet.FacetFieldProcessor.findTopSlots()}}, > at line 316 retrieves the field {{sortAcc}}, which is null. This null pointer > is subsequently used in a lambda expression, line 325 (and 320!). I guess the > problem is that some input validation is missing? > We found this bug using [Diffblue Microservices > Testing|https://www.diffblue.com/labs/?utm_source=solr-br]. 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?utm_source=solr-br]. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org