lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Johannes Kloos (JIRA)" <>
Subject [jira] [Created] (SOLR-13207) AIOOBE in calculateMinShouldMatch
Date Thu, 31 Jan 2019 14:23:00 GMT
Johannes Kloos created SOLR-13207:

             Summary: AIOOBE in calculateMinShouldMatch
                 Key: SOLR-13207
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
         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

git clone
cd lucene-solr
git checkout ea2c8ba
ant compile
cd solr
ant server

h1. Building the collection and reproducing the bug

We followed [Exercise 2|]
from the [Solr Tutorial|].

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, and
initialize it:

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_"}}'
./bin/post -c films example/films/films.json
curl -v “URL_BUG”

Please check the issue description below to find the “URL_BUG” that will allow you to
reproduce the issue reported.

            Reporter: Johannes Kloos

Requesting the following URL causes Solr to return an HTTP 500 error response:


The error response seems to be caused by the following uncaught exception:

java.lang.ArrayIndexOutOfBoundsException: 0
at org.apache.solr.util.SolrPluginUtils.calculateMinShouldMatch(
at org.apache.solr.util.SolrPluginUtils.setMinShouldMatch(
at org.apache.solr.util.SolrPluginUtils.setMinShouldMatch(
at org.apache.solr.handler.component.QueryComponent.prepare(
at org.apache.solr.handler.component.SearchHandler.handleRequestBody(
at org.apache.solr.handler.RequestHandlerBase.handleRequest(
at org.apache.solr.core.SolrCore.execute(


The mm parameter is given as ‘<’. It is (after some string mangling) split into sub-strings
separated by ‘<’, putattively giving the left-hand and right-hand argument of the operator.
In the example, there are no such arguments, so the resulting array “parts” is empty (cf.
String.split documentation). But we immediately try to access parts[0], leading to an AIOOBE.

To set up an environment to reproduce this bug, follow the description in the ‘Environment’

We automatically found this issue and ~70 more like this using [Diffblue Microservices Testing|].
Find more information on this [fuzz testing campaign|].

This message was sent by Atlassian JIRA

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message