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https://issues.apache.org/jira/browse/JENA-444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13642773#comment-13642773
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Andy Seaborne commented on JENA-444:
------------------------------------
The java.nio.charset.MalformedInputException seems to be due to illegal
characters in error message body.
Fix applied to safely get the error message but that's not the root cause.
> "Error 500: java.nio.charset.MalformedInputException: Input length = 1" for a
> federated SPARQL query with multiple triple patterns (in inner query), where
> one of them uses SPARQL property paths
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: JENA-444
> URL: https://issues.apache.org/jira/browse/JENA-444
> Project: Apache Jena
> Issue Type: Bug
> Components: Fuseki, Jena, TDB
> Affects Versions: Jena 2.10.1, TDB 0.10.1
> Environment: Ubuntu
> Reporter: Sarven Capadisli
>
> The following query throws HttpException:
> java.nio.charset.MalformedInputException: Input length = 1:
> java.nio.charset.MalformedInputException: Input length = 1 (whether query is
> requested over Fuseki or TDB)
> At SPARQL endpoint: http://transparency.270a.info/sparql
> PREFIX qb: <http://purl.org/linked-data/cube#>
> SELECT *
> WHERE {
> SERVICE <http://worldbank.270a.info/sparql> {
> SELECT ?observationX ?componentMeasureX
> WHERE {
> <http://worldbank.270a.info/dataset/AG.AGR.TRAC.NO>
> qb:structure/qb:component/qb:measure ?componentMeasureX .
> ?observationX qb:dataSet
> <http://worldbank.270a.info/dataset/AG.AGR.TRAC.NO> .
> }
> }
> }
> Some test results:
> * If either one of the triple patterns in the inner query is commented out,
> the query returns a response
> * The inner query alone returns a response if done at
> http://worldbank.270a.info/sparql
> * If a SPARQL property path inside SERVICE is not the only triple pattern, it
> throws an error.
> Full error:
> HttpException: java.nio.charset.MalformedInputException: Input length = 1:
> java.nio.charset.MalformedInputException: Input length = 1
> at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:525)
> at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:289)
> at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:240)
> at com.hp.hpl.jena.sparql.engine.http.Service.exec(Service.java:132)
> at
> com.hp.hpl.jena.sparql.engine.main.iterator.QueryIterService.nextStage(QueryIterService.java:51)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.makeNextStage(QueryIterRepeatApply.java:115)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.hasNextBinding(QueryIterRepeatApply.java:67)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:40)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:40)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:40)
> at
> com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:112)
> at
> com.hp.hpl.jena.sparql.engine.ResultSetStream.hasNext(ResultSetStream.java:75)
> at
> com.hp.hpl.jena.sparql.resultset.ResultSetMem.<init>(ResultSetMem.java:97)
> at
> com.hp.hpl.jena.query.ResultSetFactory.makeRewindable(ResultSetFactory.java:420)
> at
> com.hp.hpl.jena.sparql.resultset.TextOutput.write(TextOutput.java:149)
> at
> com.hp.hpl.jena.sparql.resultset.TextOutput.write(TextOutput.java:132)
> at
> com.hp.hpl.jena.sparql.resultset.TextOutput.write(TextOutput.java:120)
> at
> com.hp.hpl.jena.sparql.resultset.TextOutput.format(TextOutput.java:67)
> at
> com.hp.hpl.jena.query.ResultSetFormatter.out(ResultSetFormatter.java:135)
> at
> com.hp.hpl.jena.sparql.util.QueryExecUtils.outputResultSet(QueryExecUtils.java:157)
> at
> com.hp.hpl.jena.sparql.util.QueryExecUtils.doSelectQuery(QueryExecUtils.java:199)
> at
> com.hp.hpl.jena.sparql.util.QueryExecUtils.executeQuery(QueryExecUtils.java:75)
> at arq.query.queryExec(query.java:187)
> at arq.query.exec(query.java:144)
> at arq.cmdline.CmdMain.mainMethod(CmdMain.java:101)
> at arq.cmdline.CmdMain.mainRun(CmdMain.java:63)
> at arq.cmdline.CmdMain.mainRun(CmdMain.java:50)
> at tdb.tdbquery.main(tdbquery.java:34)
> Caused by: java.nio.charset.MalformedInputException: Input length = 1
> at java.nio.charset.CoderResult.throwException(CoderResult.java:277)
> at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:338)
> at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
> at java.io.InputStreamReader.read(InputStreamReader.java:184)
> at java.io.BufferedReader.read1(BufferedReader.java:203)
> at java.io.BufferedReader.read(BufferedReader.java:279)
> at java.io.Reader.read(Reader.java:140)
> at
> com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:458)
> at
> com.hp.hpl.jena.util.FileUtils.readWholeFileAsUTF8(FileUtils.java:442)
> at
> com.hp.hpl.jena.sparql.engine.http.HttpQuery.execCommon(HttpQuery.java:438)
> ... 30 more
> $ java tdb.tdbquery --version
> Jena: VERSION: 2.10.1-SNAPSHOT
> Jena: BUILD_DATE: 2013-04-19T10:04:25+0100
> ARQ: VERSION: 2.10.1-SNAPSHOT
> ARQ: BUILD_DATE: 2013-04-19T10:04:25+0100
> RIOT: VERSION: 2.10.1-SNAPSHOT
> RIOT: BUILD_DATE: 2013-04-19T10:04:25+0100
> TDB: VERSION: 0.10.1-SNAPSHOT
> TDB: BUILD_DATE: 2013-04-19T10:04:25+0100
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