public Collection<Config> getAllMavenSettingsConfigs() {
   final ExtensionList<MavenSettingsConfigProvider> configProviders =
       Jenkins.getInstance().getExtensionList(MavenSettingsConfigProvider.class);
   if (configProviders != null && configProviders.size() > 0) {
     // there is only one implementation...
     return configProviders.get(0).getAllConfigs();
   }
   return Collections.emptyList();
 }