code: public static ConfigurationManager getInstance()
  		throws ConfigurationException
  	{
  
  		if (instance == null) {
  			throw ErrorFactory
  					.createConfigurationException(ErrorKeys.CONFIGURATION_CONFIGURATIONMANAGER_NOT_INITIALIZED);
  		}
  		return instance;
  	}
docs: Returns the reference to the instance of the ConfigurationManager.
  
  @return ConfigurationManager
  
  @throws ConfigurationException
  if the ConfigurationManager has not been created during the
  startup of the application.