[jira] [Commented] (JENA-1855) TRIG parser yields NULL-graph for quads in default graph

["Reeshabh Kumar Ranjan (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JENA-1855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17054769#comment-17054769 ] 

Reeshabh Kumar Ranjan commented on JENA-1855:
---------------------------------------------

Can I work on this issue?

> TRIG parser yields NULL-graph for quads in default graph
> --------------------------------------------------------
>
>                 Key: JENA-1855
>                 URL: https://issues.apache.org/jira/browse/JENA-1855
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: RIOT
>    Affects Versions: Jena 3.14.0
>            Reporter: Claus Stadler
>            Priority: Major
>
> Hi Jena Team and Andy, thanks for all your great work on Jena and fixing all my recent issues, but I found another one :)
> The Trig Parser yields quads with a null value in the graph component for data in the default graph. It should be Quad.defaultGraphNodeGenerated.
> Test data:
> {code}
> # test.trig
> @base <http://www.example.org/base-> .
> @prefix : <http://www.example.org/prefx-> .
> <s> <p> <o> .
> :x :y :z .
> {code}
> {code:java}
> Iterator<Quad> it = RDFDataMgr.createIteratorQuads(RDFDataMgr.open("test.trig"), Lang.TRIG, null);
> while(it.hasNext()) {
> 	Quad q = it.next();
> 	System.out.println(q.getGraph());
> }
> {code}
> {code}
> null
> null
> {code}
> This causes quite unexpected null pointer exceptions, such as in this simple scenario:
> {code}		
> Dataset ds = RDFDataMgr.loadDataset("test.trig");
> System.out.println(ds.asDatasetGraph().size());
> {code}



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