J48 cls = (J48)weka.core.SerializationHelper.read(modelfile);
cls.setOptions(options);
for(int i = 0; i < data.numInstances(); i++){
double pred = cls.classifyInstance(data.instance(i));
ClusterClass clusClass = ClusterClass.valueOf(
data.classAttribute().value((int)pred).toUpperCase());
if(!retval.containsKey(clusClass)){
retval.put(clusClass, new ArrayList<StoredDomainCluster>());
}
retval.get(clusClass).add(clusters.get(i));
}