# Error in stardog log when running a query **URL:** \ **Category:** Bug\ **Created:** [May 2, 2018, 12:54pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980 "2018-05-02T12:54:15Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![hmottestad](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/hmottestad/32/19_2.png) [@hmottestad](https://community.stardog.com/u/hmottestad)\ **Post date:** [May 2, 2018, 12:54pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/1 "2018-05-02T12:54:15Z")
Hi, A query is failing on me with the following error in stardog.log (sorry for the formatting, stardog is running in an enterprise environment and all I get is a 80x80 char terminal) ```auto ERROR 2018-05-02 14:01:41,286 [XNIO-1 task-16] com.complexible.stardog.protocols .http.server.StardogHttpServiceLoader:accept(231): An unexpected exception was h andled by the server org.openrdf.query.QueryEvaluationException: null at com.complexible.common.rdf.query.IteratorAsTupleQueryResult.hasNext(I teratorAsTupleQueryResult.java:81) ~[stardog-utils-rdf-5.1.0.jar:?] at org.openrdf.query.QueryResults.report(QueryResults.java:158) ~[sesame -query-4.0.0.jar:?] at org.openrdf.query.resultio.QueryResultIO.writeTuple(QueryResultIO.jav a:449) ~[sesame-queryresultio-api-4.0.0.jar:?] at com.complexible.stardog.protocols.http.server.ProtocolUtils.writeTupl eResponse(ProtocolUtils.java:563) ~[stardog-protocols-http-server-5.1.0.jar:?] at com.complexible.stardog.protocols.http.server.ProtocolUtils.executeRe adQuery(ProtocolUtils.java:470) ~[stardog-protocols-http-server-5.1.0.jar:?] at com.complexible.stardog.protocols.http.server.ProtocolUtils.executeRe adQuery(ProtocolUtils.java:455) ~[stardog-protocols-http-server-5.1.0.jar:?] at com.complexible.stardog.protocols.http.server.SPARQLProtocol.executeQ uery(SPARQLProtocol.java:134) ~[stardog-protocols-http-server-5.1.0.jar:?] at com.complexible.stardog.protocols.http.server.SPARQLProtocol.get(SPAR QLProtocol.java:82) ~[stardog-protocols-http-server-5.1.0.jar:?] at com.stardog.http.server.undertow.jaxrs.ExtractRoutes.lambda$handleIt$ 5(ExtractRoutes.java:192) ~[stardog-protocols-http-server-5.1.0.jar:?] at at org.apache.shiro.subject.support.SubjectRunnable.doRun(SubjectRunnabl e.java:120) ~[shiro-core-1.2.3.jar:1.2.3] at org.apache.shiro.subject.support.SubjectRunnable.run(SubjectRunnable. java:108) ~[shiro-core-1.2.3.jar:1.2.3] at com.stardog.http.server.undertow.ErrorHandling.lambda$safeDispatch$1( ErrorHandling.java:71) ~[stardog-protocols-http-server-5.1.0.jar:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor. java:1142) [?:1.8.0_111-internal] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor .java:617) [?:1.8.0_111-internal] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111-internal] Caused by: java.lang.ArrayIndexOutOfBoundsException ``` ---
**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\ **Post date:** [May 2, 2018, 1:21pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/2 "2018-05-02T13:21:37Z")
Are you able to get any more of the stardog.log? It looks like the stack trace continues past what you’ve pasted. Also, how are you running the query? ---
**Author:** ![hmottestad](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/hmottestad/32/19_2.png) [@hmottestad](https://community.stardog.com/u/hmottestad)\ **Post date:** [May 9, 2018, 8:50am UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/3 "2018-05-09T08:50:14Z")
Hi @stephen This is the query: ```auto select ((count (distinct ?id)) as ?count ) WHERE { ?id rdf:type ?type } ``` Run without reasoning. ---
**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\ **Post date:** [May 9, 2018, 3:42pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/4 "2018-05-09T15:42:19Z")
Are you running it via CLI, HTTP, Java, Studio…? ---
**Author:** ![hmottestad](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/hmottestad/32/19_2.png) [@hmottestad](https://community.stardog.com/u/hmottestad)\ **Post date:** [May 9, 2018, 4:00pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/5 "2018-05-09T16:00:12Z")
Java. 20 characters. ---
**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\ **Post date:** [May 9, 2018, 4:35pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/6 "2018-05-09T16:35:30Z")
I seem unable to reproduce this issue locally. I can see that you’re using 5.1.0 server side. Which version of the client jar(s) are you using? ---
**Author:** ![hmottestad](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/hmottestad/32/19_2.png) [@hmottestad](https://community.stardog.com/u/hmottestad)\ **Post date:** [May 9, 2018, 4:54pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/7 "2018-05-09T16:54:45Z")
Same. 5.1.0 there too. Håvard ---
**Author:** ![hmottestad](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/hmottestad/32/19_2.png) [@hmottestad](https://community.stardog.com/u/hmottestad)\ **Post date:** [May 9, 2018, 4:55pm UTC](https://community.stardog.com/t/error-in-stardog-log-when-running-a-query/980/8 "2018-05-09T16:55:36Z")
I’m away from the office, so I can’t log back in to check for more logs until Monday earliest. High security for the production systems. Håvard