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https://issues.apache.org/jira/browse/JENA-2033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280280#comment-17280280
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ASF subversion and git services commented on JENA-2033:
-------------------------------------------------------
Commit d7e4ff64b006bf271bd675b5857ce740a7f15cca in jena's branch
refs/heads/master from Andy Seaborne
[ https://gitbox.apache.org/repos/asf?p=jena.git;h=d7e4ff6 ]
JENA-2033: Fix for parsing updates with sub-selects
> SPARQL Update parsing fails
> ---------------------------
>
> Key: JENA-2033
> URL: https://issues.apache.org/jira/browse/JENA-2033
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ
> Reporter: Florian Kleedorfer
> Assignee: Andy Seaborne
> Priority: Major
>
> My project depends on 3.18.0-SNAPSHOT.
> In a test, the following code snippet recently stopped working:
> {noformat}
> String sparqlQuery =
> "PREFIX msg: <https://w3id.org/won/message#> \n"
> + "DELETE { \n" + " GRAPH ?g {?s ?p ?o} \n" "} \n"
> + "WHERE { \n" + " GRAPH ?g { ?s ?p ?o } \n"
> + " { SELECT (GROUP_CONCAT(?content; separator=\" \") as ?contentGraphs) \n"
> + " WHERE { GRAPH <urn:x-arq:UnionGraph> { ?msg msg:content ?content } \n"
> + " }\n"
> + "} \n"
> + "FILTER (!contains(?contentGraphs,str(?g))) \n"
> + "} \n";
> UpdateRequest update = UpdateFactory.create(sparqlQuery);
> {noformat}
>
> The following exception is thrown:
>
> {noformat}
> org.apache.jena.sparql.ARQInternalErrorException: Parser query object is null
> at
> org.apache.jena.sparql.lang.SPARQLParserBase.pushQuery(SPARQLParserBase.java:216)
> at
> org.apache.jena.sparql.lang.SPARQLParserBase.startSubSelect(SPARQLParserBase.java:222)
>
> at
> org.apache.jena.sparql.lang.arq.ARQParser.GroupGraphPattern(ARQParser.java:2316)
>
> at
> org.apache.jena.sparql.lang.arq.ARQParser.GroupOrUnionGraphPattern(ARQParser.java:2876)
>
> at
> org.apache.jena.sparql.lang.arq.ARQParser.GraphPatternNotTriples(ARQParser.java:2501)
>
> at
> org.apache.jena.sparql.lang.arq.ARQParser.GroupGraphPatternSub(ARQParser.java:2393)
>
> at
> org.apache.jena.sparql.lang.arq.ARQParser.GroupGraphPattern(ARQParser.java:2324)
>
> at org.apache.jena.sparql.lang.arq.ARQParser.Modify(ARQParser.java:1876)
> at org.apache.jena.sparql.lang.arq.ARQParser.Update1(ARQParser.java:1641)
> at org.apache.jena.sparql.lang.arq.ARQParser.Update(ARQParser.java:1573)
> at org.apache.jena.sparql.lang.arq.ARQParser.UpdateUnit(ARQParser.java:61)
> at
> org.apache.jena.sparql.lang.ParserARQUpdate.executeParse(ParserARQUpdate.java:42)
>
> at org.apache.jena.sparql.lang.UpdateParser.parse(UpdateParser.java:46)
> at org.apache.jena.update.UpdateFactory.make(UpdateFactory.java:87)
> at org.apache.jena.update.UpdateFactory.create(UpdateFactory.java:78)
> at org.apache.jena.update.UpdateFactory.create(UpdateFactory.java:56)
> at org.apache.jena.update.UpdateFactory.create(UpdateFactory.java:46)
> at
> won.utils.goals.GoalInstantiationProducer.<init>(GoalInstantiationProducer.java:67)
>
> {noformat}
> I did not find any related discussions or changes, so I suspect this is an
> unintended side effect of some change, hence the classification as a bug.
> Please excuse if there is something I overlooked.
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