JPackage jp = new JPackage(packagename);
jm.getPackages().add(jp);
log.info("Creating a class called 'Thing1' for all properties with no given domain");
JClass localClass = new JClass(jp, "Thing1", RDFS.Class);
localClass.addSuperclass(jm.getRoot());
jm.setRoot(localClass);
// get all classes and assign to package
Set<String> usedClassnames = new HashSet<String>();
usedClassnames.add(jm.getRoot().getName());