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https://issues.apache.org/jira/browse/JENA-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17162571#comment-17162571
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Amir Hooshmand edited comment on JENA-1938 at 7/22/20, 7:56 AM:
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Thanks for the comment, but of-course it is a bug, please see below from Jena
Documentation:
* "The Jena Ontology API is language-neutral: the Java class names are not
specific to the underlying language. For example, *the {{OntClass}} Java class
can represent an* *OWL class or RDFS class*. To represent the differences
between the various representations, each of the ontology languages has a
_profile_, which lists the permitted constructs and the names of the classes
and properties."
* Check here: [https://jena.apache.org/documentation/ontology/]
Furthermore in the same class OWLProfile see lines 385-402;
* As you can see the OntClass.doCheck() is very different from the
getClassDescriptionTypes()
* This shows one of the methods should be buggy!
was (Author: ahoo):
Thanks for the comment, but of-course it is a bug, please see below from Jena
Documentation:
* "The Jena Ontology API is language-neutral: the Java class names are not
specific to the underlying language. For example, *the {{OntClass}} Java class
can represent an* *OWL class or RDFS class*. To represent the differences
between the various representations, each of the ontology languages has a
_profile_, which lists the permitted constructs and the names of the classes
and properties."
* Check here: [https://jena.apache.org/documentation/ontology/]
> OntClass query does not return classes that are of type RDFS.Class
> ------------------------------------------------------------------
>
> Key: JENA-1938
> URL: https://issues.apache.org/jira/browse/JENA-1938
> Project: Apache Jena
> Issue Type: Bug
> Components: Ontology API
> Affects Versions: Jena 3.16.0
> Environment: Team,
> There is a bug in the Ontology API; the OntClass query does not return
> classes that are RDFS.Class. You receive only OWL.Class and OWL.Restriction
> classes
> There are two functions affected due to this bug (to my best knowledge);
> * ontClass.listNamedClasses();
> * ontClass.listClasses();
> The Bug is in "org.apache.jena.ontology.impl" in
> * OWLProfile Class,
> * method getClassDescriptionTypes()
> * in Line 218
> My suggestion to fix the bug:
> * add <<< RDFS.Class >>> to the ArrayList.
>
> Thanks
> Amir
> Reporter: Amir Hooshmand
> Priority: Major
> Labels: easyfix, ready-to-commit
>
> Team,
> There is a bug in the Ontology API; the OntClass query does not return
> classes that are RDFS.Class. You receive only OWL.Class and OWL.Restriction
> classes
> There are two functions affected due to this bug (to my best knowledge);
> * ontClass.listNamedClasses();
> * ontClass.listClasses();
> The Bug is in "org.apache.jena.ontology.impl" in
> * OWLProfile Class,
> * method getClassDescriptionTypes()
> * in Line 218
> My suggestion to fix the bug:
> * add <<< RDFS.Class >>> to the ArrayList.
>
> Thanks
> Amir
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