Johannes Kloos created SOLR-13180: ------------------------------------- Summary: 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 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}} Reporter: Johannes Kloos Attachments: 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]. -- 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