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https://issues.apache.org/jira/browse/MARMOTTA-191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13626305#comment-13626305
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Sergio Fernández commented on MARMOTTA-191:
-------------------------------------------
OK, I'll try such alternative implementation while in parallel I report the
issue to Sesame. Thanks!
> SPARQL graph results fails under some circunstances
> ---------------------------------------------------
>
> Key: MARMOTTA-191
> URL: https://issues.apache.org/jira/browse/MARMOTTA-191
> Project: Marmotta
> Issue Type: Bug
> Components: Platform
> Affects Versions: 2.6, 3.0-incubating
> Reporter: Sergio Fernández
> Assignee: Sergio Fernández
> Priority: Minor
> Fix For: 3.1-incubating
>
>
> Write some unit tests:
> https://git-wip-us.apache.org/repos/asf?p=incubator-marmotta.git;a=blob;f=platform/marmotta-sparql/src/test/java/org/apache/marmotta/platform/sparql/webservices/SparqlWebServiceTest.java;h=06d03ebdcbcdec8cdf33e4ae975383ee6c2332bf;hb=HEAD#l91
> I realized the SPARQL Graph results fails:
> java.lang.AssertionError: Created a duplicate MemURI for URI
> http://www.wikier.org/foaf#wikier
> at
> org.openrdf.sail.memory.model.MemValueFactory.getOrCreateMemURI(MemValueFactory.java:281)
> at
> org.openrdf.sail.memory.model.MemValueFactory.getOrCreateMemResource(MemValueFactory.java:247)
> at
> org.openrdf.sail.memory.MemoryStore.addStatement(MemoryStore.java:538)
> at
> org.openrdf.sail.memory.MemoryStoreConnection.addStatementInternal(MemoryStoreConnection.java:441)
> at
> org.openrdf.sail.memory.MemoryStoreConnection.addStatementInternal(MemoryStoreConnection.java:395)
> at
> org.openrdf.sail.helpers.SailConnectionBase.addStatement(SailConnectionBase.java:441)
> at
> org.openrdf.repository.sail.SailRepositoryConnection.addWithoutCommit(SailRepositoryConnection.java:281)
> at
> org.openrdf.repository.base.RepositoryConnectionBase.addWithoutCommit(RepositoryConnectionBase.java:561)
> at
> org.openrdf.repository.base.RepositoryConnectionBase.add(RepositoryConnectionBase.java:433)
> at
> org.apache.marmotta.platform.sparql.services.sparqlio.rdf.SPARQLGraphResultWriter.write(SPARQLGraphResultWriter.java:68)
> at
> org.apache.marmotta.platform.sparql.services.sparql.SparqlServiceImpl.query(SparqlServiceImpl.java:195)
> at
> org.apache.marmotta.platform.sparql.services.sparql.SparqlServiceImpl.query(SparqlServiceImpl.java:108)
> at
> org.apache.marmotta.platform.sparql.services.sparql.SparqlServiceImpl$Proxy$_$$_WeldClientProxy.query(SparqlServiceImpl$Proxy$_$$_WeldClientProxy.java)
> at
> org.apache.marmotta.platform.sparql.webservices.SparqlWebService$1.write(SparqlWebService.java:485)
> But I'm not totally sure it's actually a bug, either on our side or in
> Sesame, because I cannot easily reproduce it on all environments: it works
> fine at runtime and from junit at eclipse, but it fails from maven.
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