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https://issues.apache.org/jira/browse/JENA-170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13160171#comment-13160171
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Andy Seaborne commented on JENA-170:
------------------------------------

Yes (editted for future reader(s))

Thx for pointing it out.


                
> hexBinary whitespace issue
> --------------------------
>
>                 Key: JENA-170
>                 URL: https://issues.apache.org/jira/browse/JENA-170
>             Project: Jena
>          Issue Type: Bug
>          Components: ARQ, Jena, RDF/XML
>         Environment: 2.6.4
>            Reporter: Henry Story
>            Assignee: Andy Seaborne
>            Priority: Minor
>
> As I understand, initial and final white spaces in xsd:hexBinary in xml 
> should be ignored
>    http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/#hexBinary
>  
> because of the whitespace facet.
> With Jena 2.6.4 this is not the case, as shown by the test below. 
> I found that in Clerezza when using the graph api, so this is a problem even 
> when one does not use SPARQL.
> Removing the white space solves the proble. 
> xsd:hexBinary is already a very fragile encoding. Making it this fragile is 
> bound to lead to issues in communication.
> The same is true with the N3 encoding.
> -----------------------------------------------------------------
> hjs@bblfish[0]$ cat q1.sparql 
> PREFIX : <http://me.example/p#> 
> PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
> SELECT ?S WHERE {
>   ?S :related "AAAA"^^xsd:hexBinary .
> }
> hjs@bblfish[0]$ cat c1.rdf 
> <rdf:RDF xmlns="http://me.example/p#";
>     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";>
>     <rdf:Description rdf:about="http://me.example/p#me";>
>         <related rdf:datatype="http://www.w3.org/2001/XMLSchema#hexBinary";>
> AAAA
> </related>
>     </rdf:Description>
> </rdf:RDF>
> hjs@bblfish[0]$ arq --query=q1.sparql --data=c1.rdf
> -----
> | S |
> =====
> -----

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