ObjectType cls = new ObjectType(clsName); ObjectType superCls = new ObjectType(possibleSupertypeClassName);
ObjectType cls = ObjectTypeFactory.getInstance(clsName); ObjectType superCls = ObjectTypeFactory.getInstance(possibleSupertypeClassName);
	public static boolean isSubtype(String clsName, String possibleSupertypeClassName) throws ClassNotFoundException {		ObjectType cls = new ObjectType(clsName);		ObjectType superCls = new ObjectType(possibleSupertypeClassName);		return isSubtype(cls, superCls);	}