docs: public void addSection(String section, ConfigParams sectionParams) {
  		if (section == null)
  			throw new NullPointerException("Section name cannot be null");
  
  		if (sectionParams != null) {
  			for (Map.Entry<String, String> entry : sectionParams.entrySet()) {
  				String key = entry.getKey();
  
  				if (key.length() > 0 && section.length() > 0)
  					key = section + "." + key;
  				else if (key.length() == 0)
  					key = section;
  
  				String value = entry.getValue();
  
  				put(key, value);
  			}
  		}
  	}