PropertyClassManager.getInstance().registerPropertyClass(new SystemConfiguration());
PropertyClassManager.getInstance().registerPropertyClass(new UserAttributes());
PropertyClassManager.getInstance().registerPropertyClass(new PolicyAttributes());
PropertyClassManager.getInstance().registerPropertyClass(new RealmProperties());
PropertyClassManager.getInstance().registerPropertyClass(new ApplicationParameters());
PropertyClassManager.getInstance().registerPropertyClass(new ResourceAttributes());
// Load the property database and categories
// Use the default system database if no other has been registered
try {
ProfilesFactory.getInstance().open(this);