public static String getUserName() {
   String username = "";
   RealmService realmService = DynamicClientRegistrationDataHolder.getInstance().getRealmService();
   if (realmService != null) {
     username = realmService.getBootstrapRealmConfiguration().getAdminUserName();
   }
   return username;
 }
 public static Registry getGovernanceRegistry() throws DynamicClientRegistrationException {
   try {
     int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
     return DynamicClientRegistrationDataHolder.getInstance()
         .getRegistryService()
         .getGovernanceSystemRegistry(tenantId);
   } catch (RegistryException e) {
     throw new DynamicClientRegistrationException(
         "Error in retrieving governance registry instance: " + e.getMessage(), e);
   }
 }