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https://issues.apache.org/jira/browse/JENA-1378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16104983#comment-16104983
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ASF subversion and git services commented on JENA-1378:
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Commit b11e87393e520815c669bd0086434c2960496b78 in jena's branch
refs/heads/master from [~andy.seaborne]
[ https://git-wip-us.apache.org/repos/asf?p=jena.git;h=b11e873 ]
JENA-1378: Set the accept header in the default use case.
> RDFDataMgr does not perform conneg when reading remote RDF resources
> --------------------------------------------------------------------
>
> Key: JENA-1378
> URL: https://issues.apache.org/jira/browse/JENA-1378
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ
> Affects Versions: Jena 3.4.0
> Reporter: Aaron Coburn
>
> In the past, I have been able to use RDFDataMgr.read(Graph, String) to fetch
> vocabularies like so:
> final Graph graph = Factory.createDefaultGraph();
> RDFDataMgr.read(graph, "http://purl.org/dc/terms";);
> This no longer works in 3.4.0. The error is:
> org.apache.jena.riot.RiotException: Failed to determine the content
> type: (URI=http://purl.org/dc/terms/ : stream=text/html)
> The key thing about these remote resources is that they involve content
> negotiation in order to get to the RDF serialization; otherwise an HTML page
> is returned that cannot be parsed by RIOT.
> Adding a Lang attribute to the read() function does not help.
> This appears to be due to the RDFParser library not including an Accept
> header in the HTTP request to the remote resource: https://git.io/v7sTV
> Perhaps a good solution would be to provide a default accept header
> ("text/turtle, application/rdf+xml, application/ld+json") or, even better,
> that accept header could be configurable by a client.
> A work-around for me is to just use the HttpOp.execHttpGet function directly,
> but it would be nice if this functioned as it once did.
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