* @return authentication manager
* @throws ConfigurationException
*/
protected AuthenticationManager createAuthenticationManager() throws ConfigurationException
{
final SecurityConfiguration securityConfiguration = _configuration.getConfiguration(SecurityConfiguration.class.getName());
final Collection<AuthenticationManagerPluginFactory<? extends Plugin>> factories = _pluginManager.getAuthenticationManagerPlugins().values();
if (factories.size() == 0)
{
throw new ConfigurationException("No authentication manager factory plugins found. Check the desired authentication" +