Ben Gould created JENA-1037:
-------------------------------

             Summary: jena-osgi
                 Key: JENA-1037
                 URL: https://issues.apache.org/jira/browse/JENA-1037
             Project: Apache Jena
          Issue Type: Bug
          Components: OSGi
    Affects Versions: Jena 3.0.0
         Environment: Karaf
            Reporter: Ben Gould


I'm trying to create a simple interface/impl that will generate Prov-O RDF and 
place it on a JMS queue.  This object will live in an OSGi environment and be 
injected into various operating services working in a workflow.  I call the 
following piece of code:

public static OntModel createModel(final String ontologyUri) {
                final OntModel model = 
ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM);
                model.read(ontologyUri);
                return model;
        }

with the ontologyUri="http://www.w3.org/ns/prov-o";;  but when it gets to the 
ModelFactory.createOntologyModel(...) it chokes with the following stack trace. 
 
java.lang.IncompatibleClassChangeError: Class 
org.apache.jena.rdfxml.xmlinput.impl.RDFXMLParser$SAXParserWithEncodingCheck 
does not implement the requested interface org.xml.sax.XMLReader
    at org.apache.jena.rdfxml.xmlinput.SAX2RDF.installHandlers(SAX2RDF.java:171)
    at 
org.apache.jena.rdfxml.xmlinput.impl.RDFXMLParser.<init>(RDFXMLParser.java:63)
    at 
org.apache.jena.rdfxml.xmlinput.impl.RDFXMLParser.create(RDFXMLParser.java:127)
    at org.apache.jena.rdfxml.xmlinput.JenaReader.<init>(JenaReader.java:69)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)[:1.8.0_11]
    at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)[:1.8.0_11]
    at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)[:1.8.0_11]
    at 
java.lang.reflect.Constructor.newInstance(Constructor.java:408)[:1.8.0_11]
    at java.lang.Class.newInstance(Class.java:433)[:1.8.0_11]
    at 
org.apache.jena.rdf.model.impl.RDFReaderFImpl.getReader(RDFReaderFImpl.java:120)
    at org.apache.jena.rdf.model.impl.ModelCom.read(ModelCom.java:279)
    at 
org.apache.jena.ontology.OntDocumentManager.findMetadata(OntDocumentManager.java:892)
    at 
org.apache.jena.ontology.OntDocumentManager.initialiseMetadata(OntDocumentManager.java:850)
    at 
org.apache.jena.ontology.OntDocumentManager.<init>(OntDocumentManager.java:198)
    at 
org.apache.jena.ontology.OntDocumentManager.<init>(OntDocumentManager.java:180)
    at 
org.apache.jena.ontology.OntDocumentManager.<init>(OntDocumentManager.java:164)
    at 
org.apache.jena.ontology.OntDocumentManager.getInstance(OntDocumentManager.java:242)
    at 
org.apache.jena.ontology.OntModelSpec.getDocumentManager(OntModelSpec.java:320)
    at 
org.apache.jena.ontology.impl.OntModelImpl.getDocumentManager(OntModelImpl.java:189)
    at 
org.apache.jena.ontology.impl.OntModelImpl.loadImports(OntModelImpl.java:1964)
    at org.apache.jena.ontology.impl.OntModelImpl.<init>(OntModelImpl.java:151)
    at org.apache.jena.ontology.impl.OntModelImpl.<init>(OntModelImpl.java:131)
    at 
org.apache.jena.rdf.model.ModelFactory.createOntologyModel(ModelFactory.java:288)
    ... 





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