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https://issues.apache.org/jira/browse/JENA-35?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andy Seaborne reassigned JENA-35:
---------------------------------
Assignee: Andy Seaborne
> NPE on a particular SPARQL query
> --------------------------------
>
> Key: JENA-35
> URL: https://issues.apache.org/jira/browse/JENA-35
> Project: Jena
> Issue Type: Bug
> Components: ARQ
> Environment: tdb 0.8.9
> Reporter: Benson Margulies
> Assignee: Andy Seaborne
> Attachments: aq0.ru
>
>
> nquads to demo this can be found on people.apache.org:~bimargulies,
> 1k_news.nq.gz
> tdbquery --loc=1k_news.tdb --query=aq0.ru
> First, the backtrace:
> {noformat}
> /Users/benson/data tdbquery --loc=1k_news.tdb --query=aq0.ru
> Exception
> java.lang.NullPointerException
> at
> com.hp.hpl.jena.sparql.serializer.FmtExpr$FmtExprARQVisitor.visit(FmtExpr.java:126)
> at
> com.hp.hpl.jena.sparql.expr.ExprFunctionN.visit(ExprFunctionN.java:109)
> at com.hp.hpl.jena.sparql.serializer.FmtExpr.format(FmtExpr.java:37)
> at com.hp.hpl.jena.sparql.util.ExprUtils.fmtSPARQL(ExprUtils.java:141)
> at com.hp.hpl.jena.sparql.util.ExprUtils.fmtSPARQL(ExprUtils.java:146)
> at com.hp.hpl.jena.sparql.util.ExprUtils.fmtSPARQL(ExprUtils.java:152)
> at com.hp.hpl.jena.sparql.expr.ExprNode.toString(ExprNode.java:94)
> at java.lang.String.valueOf(String.java:2826)
> at java.lang.StringBuilder.append(StringBuilder.java:115)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterFilterExpr.accept(QueryIterFilterExpr.java:47)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterProcessBinding.hasNextBinding(QueryIterProcessBinding.java:52)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at org.openjena.atlas.iterator.Iter$4.hasNext(Iter.java:260)
> at
> org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:34)
> at org.openjena.atlas.iterator.Iter$4.hasNext(Iter.java:260)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterPlainWrapper.hasNextBinding(QueryIterPlainWrapper.java:42)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterProcessBinding.hasNextBinding(QueryIterProcessBinding.java:48)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at org.openjena.atlas.iterator.Iter$4.hasNext(Iter.java:260)
> at
> org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:34)
> at
> org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:34)
> at
> org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:34)
> at
> org.openjena.atlas.iterator.RepeatApplyIterator.hasNext(RepeatApplyIterator.java:34)
> at org.openjena.atlas.iterator.Iter$4.hasNext(Iter.java:260)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterPlainWrapper.hasNextBinding(QueryIterPlainWrapper.java:42)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterDefaulting.hasNextBinding(QueryIterDefaulting.java:43)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.hasNextBinding(QueryIterRepeatApply.java:57)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.makeNextStage(QueryIterRepeatApply.java:84)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.hasNextBinding(QueryIterRepeatApply.java:52)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:28)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:28)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:66)
> at
> com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execConstruct(QueryExecutionBase.java:117)
> at
> com.hp.hpl.jena.sparql.engine.QueryExecutionBase.execConstruct(QueryExecutionBase.java:100)
> at
> com.hp.hpl.jena.sparql.util.QueryExecUtils.doConstructQuery(QueryExecUtils.java:186)
> at
> com.hp.hpl.jena.sparql.util.QueryExecUtils.executeQuery(QueryExecUtils.java:58)
> at arq.query.queryExec(query.java:124)
> at arq.query.exec(query.java:91)
> at arq.cmdline.CmdMain.mainMethod(CmdMain.java:85)
> at arq.cmdline.CmdMain.mainRun(CmdMain.java:47)
> at arq.cmdline.CmdMain.mainRun(CmdMain.java:34)
> at tdb.tdbquery.main(tdbquery.java:22)
> {noformat}
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