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From "Johannes Kloos (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-13180) ClassCastExceptions in o.a.s.s.facet.FacetModule for valid JSON inputs that are not objects
Date Thu, 31 Jan 2019 14:28:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-13180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Johannes Kloos updated SOLR-13180:
----------------------------------
    Environment: 
Running on Unix, using a git checkout close to master.

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

{noformat}
git clone https://github.com/apache/lucene-solr
cd lucene-solr
git checkout ea2c8ba
ant compile
cd solr
ant server
{noformat}

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])
- for reference, I have attached a copy of the database.

{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:

{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}

  was:
Running on Unix, using a recent git checkout of master and the films example database.
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}}


> ClassCastExceptions in o.a.s.s.facet.FacetModule for valid JSON inputs that are not objects
> -------------------------------------------------------------------------------------------
>
>                 Key: SOLR-13180
>                 URL: https://issues.apache.org/jira/browse/SOLR-13180
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Facet Module
>    Affects Versions: 7.5, master (9.0)
>         Environment: Running on Unix, using a git checkout close to master.
> 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
> {noformat}
> git clone https://github.com/apache/lucene-solr
> cd lucene-solr
> git checkout ea2c8ba
> ant compile
> cd solr
> ant server
> {noformat}
> 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])
- for reference, I have attached a copy of the database.
> {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:
> {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: Johannes Kloos
>            Priority: Minor
>              Labels: diffblue, newdev
>         Attachments: SOLR-13180.patch, home.zip
>
>
> Requesting the following URL gives a 500 error due to a ClassCastException in o.a.s.s.f.FacetModule:
[http://localhost:8983/solr/films/select?json=0]
> The error response is caught by an uncaught ClassCastException, with the stacktrace shown
here:
> java.lang.ClassCastException: java.lang.Long cannot be cast to java.util.Map
> at org.apache.solr.search.facet.FacetModule.prepare(FacetModule.java:78)
> at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:272)
>  
> The cause of this bug is similar to #13178: line 78 in FacetModule reads
> {{jsonFacet = (Map<String, Object>) json.get("facet")}}
> and assumes that the JSON object contained in facet is a JSON object, while we only guarantee
that it is a JSON value.
> Line 92 semms to contain another situation like this, but I do not have a test case handy
for this specific case.
> 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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