exception while conencting to a sparql database

[Nicholas Pacini]

Hello all,

I’m having a problem and I’m searching for some help, hopefully you
could give me a hand. I’m trying to connect to a sdb using the
following snippet of code:

Store store = StoreFactory.create("sdb.ttl");
Model model = SDBFactory.connectDefaultModel(store);
model.createResource("http://someuri.com";);

but I get a strange (for me at least) exception executing the second line:

Exception in thread "main" java.lang.NoSuchMethodError:
com.hp.hpl.jena.sparql.core.Quad.isQuadDefaultGraphGenerated(Lcom/hp/hpl/jena/graph/Node;)Z
       at 
com.hp.hpl.jena.sdb.graph.GraphSDB.createPrefixMapping(GraphSDB.java:100)
       at 
com.hp.hpl.jena.sparql.graph.GraphBase2.getPrefixMapping(GraphBase2.java:172)
       at 
com.hp.hpl.jena.rdf.model.impl.ModelCom.getPrefixMapping(ModelCom.java:763)
       at 
com.hp.hpl.jena.rdf.model.impl.ModelCom.withDefaultMappings(ModelCom.java:800)
       at com.hp.hpl.jena.rdf.model.impl.ModelCom.<init>(ModelCom.java:55)
       at com.hp.hpl.jena.rdf.model.impl.ModelCom.<init>(ModelCom.java:51)
       at 
com.hp.hpl.jena.rdf.model.ModelFactory.createModelForGraph(ModelFactory.java:146)
       at com.hp.hpl.jena.sdb.SDBFactory.createModelSDB(SDBFactory.java:386)
       at 
com.hp.hpl.jena.sdb.SDBFactory.connectDefaultModel(SDBFactory.java:326)

have you any idea of what causes this? For what I see the method is
present, though deprecated, in the com.hp.hpl.jena.sparql.core.Quad
class… any thoughts about this? Thanks.

Regards,
Nicholas