Hi all!

I'm trying to develop a plugin to interact with Jena (http://jena.sourceforge.net), a semantic web framework.

I developed the plugin as I documented it in the plugin development tutorial. I have a hello() method which works perfectly. however when I try to call this method:

public List<String> test1(){
   Vector<String> uris = new Vector<String>();
   OntModel model = ModelFactory.createOntologyModel(OntModelSpec.RDFS_MEM_RDFS_INF, null );
   model.read("http://www.dcs.shef.ac.uk/~zzc05jb/environmentOntology/pollutionInventory.rdfs");
   model.read(" http://www.dcs.shef.ac.uk/~zzc05jb/environmentOntology/instances/disposalRecoveryMethods.rdf");
   Iterator iter = model.listIndividuals();
   while(iter.hasNext()){
OntResource ontClass = (OntResource)iter.next();
      uris.add(ontClass.getURI());
   }
   return uris;
}

I get this exception:

Error number 4001 in 4: Error while parsing velocity page Tests.OntologyPlugin Wrapped Exception: Invocation of method 'test1' in class secoia.plugin.OntologyPluginApi threw exception class java.lang.NoSuchFieldError : actualValueType

I can't really make sense of it. This method works if i use it form a classic Java application. I copied all the Jena jar files to the webapps/xwiki/WEB-INF/lib directory. Moreover, I don't know where this actualValueType comes from. Does it come from XWiki?

Any clue on this problem?

Thanks a lot!

--
    _   _               Julien Bourdon
   (o)(o)--.          http://purl.org/net/JulienBourdon
     \../   (  )         self isAddictedTo:(#Squeak&#linux)
   m\/m--m'`--.   ^true