log.warn("Session {} cannot be retrieved. Ignoring.", this.sessionId);
}
final Set<OWLOntology> set = new HashSet<OWLOntology>();
set.add(scope.export(OWLOntology.class, true));
if (session != null) {
set.add(session.export(OWLOntology.class, true));
}
if (set.size() == 1) return set.iterator().next();
OWLOntologyMerger merger = new OWLOntologyMerger(new OWLOntologySetProvider() {
@Override