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https://issues.apache.org/jira/browse/JENA-1308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15900809#comment-15900809
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Osma Suominen commented on JENA-1308:
-------------------------------------
Thanks again Andy, that was very quick!
I will switch to using {{--data}} and {{--namedGraph}} for now so that I don't
have to depend on a snapshot build. I forgot that the combination was already
fixed.
> NullPointerException when using --graph option of sparql command line tool
> --------------------------------------------------------------------------
>
> Key: JENA-1308
> URL: https://issues.apache.org/jira/browse/JENA-1308
> Project: Apache Jena
> Issue Type: Bug
> Components: Cmd line tools
> Affects Versions: Jena 3.2.0, Jena 3.3.0
> Environment: Ubuntu 16.04
> java version "1.8.0_121"
> Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
> Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
> Reporter: Osma Suominen
> Assignee: Andy Seaborne
> Fix For: Jena 3.3.0
>
>
> I tried using the {{--graph}} option for the {{sparql}} command line tool.
> This used to work in Jena 3.1.1. However, after upgrading to Jena 3.2.0 or
> the 3.3.0-SNAPSHOT build I get this NullPointerException instead (this is for
> 3.3.0-SNAPSHOT):
> {noformat}
> $ sparql --graph empty.nt --query query.rq
> Error creating dataset
> java.lang.NullPointerException
> at java.util.regex.Matcher.getTextLength(Matcher.java:1283)
> at java.util.regex.Matcher.reset(Matcher.java:309)
> at java.util.regex.Matcher.<init>(Matcher.java:229)
> at java.util.regex.Pattern.matcher(Pattern.java:1093)
> at org.apache.jena.iri.impl.Parser.<init>(Parser.java:89)
> at org.apache.jena.iri.impl.IRIImpl.<init>(IRIImpl.java:65)
> at
> org.apache.jena.iri.impl.AbsIRIFactoryImpl.create(AbsIRIFactoryImpl.java:40)
> at
> org.apache.jena.iri.impl.IRIFactoryImpl.create(IRIFactoryImpl.java:264)
> at
> org.apache.jena.riot.system.IRIResolver.resolveIRI(IRIResolver.java:266)
> at
> org.apache.jena.riot.system.IRIResolver.resolveString(IRIResolver.java:219)
> at
> org.apache.jena.sparql.util.DatasetUtils.addInGraphsWorker(DatasetUtils.java:198)
> at
> org.apache.jena.sparql.util.DatasetUtils.lambda$addInGraphs$0(DatasetUtils.java:181)
> at org.apache.jena.system.Txn.executeWrite(Txn.java:71)
> at
> org.apache.jena.sparql.util.DatasetUtils.addInGraphs(DatasetUtils.java:181)
> at
> org.apache.jena.sparql.util.DatasetUtils.addInGraphs(DatasetUtils.java:120)
> at arq.cmdline.ModDatasetGeneral.addGraphs(ModDatasetGeneral.java:106)
> at
> arq.cmdline.ModDatasetGeneral.createDataset(ModDatasetGeneral.java:81)
> at
> arq.cmdline.ModDatasetGeneralAssembler.createDataset(ModDatasetGeneralAssembler.java:38)
> at arq.cmdline.ModDataset.getDataset(ModDataset.java:36)
> at arq.query.getDataset(query.java:176)
> at arq.query.queryExec(query.java:213)
> at arq.query.exec(query.java:153)
> at jena.cmd.CmdMain.mainMethod(CmdMain.java:93)
> at jena.cmd.CmdMain.mainRun(CmdMain.java:58)
> at jena.cmd.CmdMain.mainRun(CmdMain.java:45)
> at arq.sparql.main(sparql.java:28)
> {noformat}
> {{empty.nt}} is empty, {{query.rq}} contains this minimal query:
> {noformat}
> SELECT * { ?s ?p ?o } LIMIT 10
> {noformat}
> As a workaround, switching to {{\--data}} solves the problem. However, in my
> understanding you cannot combine {{\--data}} with {{\--namedGraph}}.
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